That's a really nice cart and a cool idea, but it is way overpriced for what it is. I don't see much of a market for it. A lot of people on this forum that could use something like this, already have something like this or have the means to fabricate it themselves.
I'll admit up front that pricing touches a nerve with me. I've been in business selling products that I've designed and built in different industries for many years, and whenever someone comments on pricing for anything I always have to wonder how they arrive at that conclusion without knowing what it cost to produce a product. It's a fair criticism to say it may be more money than you are willing to spend on it, but I believe it's unfair to make a blanket statement that something is "overpriced for what it is."
Since we are all friends here I'll let you behind the scenes on what it truly cost to produce one, and then you can fairly judge what the pricing structure is. We choose to use American steel for our products not just because we believe its the right thing to do, but it's a much better quality product. We buy roughly 12-15 tons of plate a month from the mill, so we aren't super high volume but we do get a much better price than a guy buying just one or two sheets will get. We also use stainless steel hardware and socket head screws for both appearance and ease of assembly, and we use quality polyurethane casters with brakes and swivel locks.
All that being said if you total the costs for plate steel, hardware, casters, finishing oil, plasma consumables, shipping boxes, and tape it costs us just under $400 to produce a single unit, NOT counting labor, shop overhead, etc. Average shipping cost is around $265. Add that together and you're sitting at $665 to deliver a Tool Tower to a customer direct from the guys that make it. Here's the tricky part: if you want to get a store like Home Depot, Menards, Northern Tool, or even Amazon to carry one of your products you have to know they will take 25-30% of whatever your selling price is, so that must be built into the price as well. Credit Card processing eats up an additional 2-3%. You also have to have some room in there to offer discounts and sales.
We cover some of the the shipping cost in our price so that we can offer flat rate $149 shipping on the Tower. As you imagine, we aren't selling hundreds of these a month so there are no economies of scale. These are 100% made in our shop in Kansas without the benefits of cheap labor or government incentives or tax breaks. If we sell a Tool Tower at the full retail price of $999 (which we don't often do - we sell most of our units when there are sales or free shipping promos) then our gross profit runs around $450 per unit BEFORE you've paid yourself, the electric bill, rent, taxes, etc. That's the best-case scenario too - if the tower is sold through a retailer then they get that 25-30% cut of the MSRP which means we now clear less than $200 per unit before the other expenses are taken out.
It's true there may not be a market for something like this. We like building things for our own use in our shop and we always keep the possibility of offering everything we make for sale. The other truth is that lots of people talk about "making America great again" and "buying American" or "shopping local" but when it comes time to do it they always balk at the price. We run a VERY lean operation in a part of the country where it's cheap to live. Ain't none of us getting rich here, let me tell you. It's just EXPENSIVE to build anything good in America. I know it's easy to think anyone could build something like this, and I know many on this forum could build something even better than we did, but it took a lot of creative design on a computer to make parts that would fit together precisely and repeatedly and several thousand dollars in CNC machine and plasma cutter to make one. How many guys have a 6'x12' plasma table laying around?
Here's another facet of rolling something like this out for sale: we deploy our own websites, write our own copy, do our own product photography, etc. There's really just two guys out of our small shop that do all of that so we can avoid paying anyone else for that kind of service. The cost of those kind of services that most people would have to pay someone else for aren't even factored into our cost or production since we do it ourselves.
I know this comes off like a rant, and it probably is by definition. It just hits me where I live when people comment on pricing when they don't appreciate what it takes to make something like this and deliver it to their door. Considering all of the things it takes from the idea and design to marketing and sale, to actual fabrication and shipping I think it's actually a good value for the money. Sure, it will ALWAYS be cheaper to build something yourself. That doesn't necessarily mean that someone trying to sell one to support their family is charging too much...
This post is more to vent about the overall state of things than to go after the original poster in any way. I just hear often from the same guy that might make $30/hour at a job complain about a price we have set on a product where we all make less than half of that.
But, we are all friends on the same team. God Bless us all!
Nice clean shop! 
