I agree with the idea that you purchase the product, be it HF or Craftsman or whatever, for its functionality. And, if it saves you some $$ in the process, all the better.
My toolbox is crammed full of Craftsman. Sockets, wrenches, pliers, grips, you name it. As is my compressor. I don't have the need, nor the budget for Matco or Snap-on, as I'm just a home mechanic.
But, for things that are 'nice to have' that enable me to do jobs that otherwise would force me to go to a dealer or shop, HF comes in mighty handy. I have the tire changer with motorcycle attachment, the static wheel balancer, a 3-ton floor jack, a heat gun and I'm in the process of picking up the 1,000 lb. motorcycle lift table.
Like many others, I think about how often I will be using the tool and what kind of usage it will receive. Electric motors aren't something I'd expect to last very long in a HF tool (although many people have had good luck with them). The stuff I get is predominately user powered. With the tire changer, when I assembled it, I inserted my own washers and lock washers, thus eliminating much of the slack that was evident in the pieces. When I assembled the wheel balancer, I put a level to both sides to ensure it was square. I'll do the washer/lock washer routine with the lift table. And when its all done, I have tools that I can count on to do what I intend of them. And, just as my Craftsman stuff, they have, or should, last as long as I'll be using them.
Should they break (it hasn't happened often...to this point just with a 3-ton floor jack that stopped lifting), I take it back and they give me another one without a hassle. Yeah, it involves a 20-minute drive but at least I'm not out or tool or more money.
To sum up, I don't rely on HF as my main tool provider, but it provides me with a very good supplement for what I need to enjoy being a home mechanic.