This is going to be more of a storage lift than maintenance. I would just like the lifts to not be something I hit my head one when I walk but in the dark. So if they can stay up high enough I have no problem just leaving them on.
I just wanted to point out one other thing about the ramps. The only other reason to get the aluminum ramps though would be if you had a really low car. Keep in mind that besides being much lighter ramps (16 vs 42 pounds for the steel ones) the aluminum ones are also 6" longer. You'll appreciate the longer ramp length, especially if you think you'll be storing Vette's or other low cars.
By the way, besides using the JP-6 as a jacking tray, it makes a great place to put your oil drain container, parts, tools, and position your work light too. I would also recommend getting an RJ-45 so that you truly have a lift that gives you all the flexibility of a 2 post (maintenance wise). Plus you'll find that an RJ-45 makes using the JP-6 a LOT easier, especially since you'll never use it again to actually jack up anything - just as a jack stand tray. Here's what I mean. I keep my JP-6 at the rear of the lift and my RJ-45 at the front. When I need to rotate tires or do brakes all around, I just slide my RJ-45 to the rear and lift it up, so I can quickly place jack stands on my JP-6 and then lower my RJ-45, so the rear of the car is now resting on jack stands. I then move the RJ-45 to the front and raise the front. It's really that simple. I never even bought bottle jacks since I knew this was going to be the perfect set up for me. The only thing I have left to add to my lift is an AK-14 air line kit for the RJ-45, since it is a bit of a hassle having to use my shops one air line for the lift itself and also for the RJ-45.
Hey, I just noticed that your post says lifts. Are you planning on getting 2 of them?