Another way of solving this problem is to buy cheap, sturdy looking stuff at Walmart, check the wheels before every trip, and replace it when it looks to be falling apart. That's what I do. Cheap luggage is less of a thief magnet. If you buy the deep discounted slow seller colors (lime and fuscia paisley), and you ever do have to check your bags, they are easy to spot on the luggage conveyer. You don't have to contact anyone about repairs, and there's no shipping to a repair facility. You can chuck it out and replace it in your home city or the city you traveled to, as long as there is a Walmart equivalent store.
I started thinking this way after reading Ray Jardine'e Beyond Backpacking, the origional ultralight backpacking book. He recommended disposible cheap running shoes instead of expensive, heavy, stiff hiking boots. "But what about support? Ice? Wet? Insulation?" Well, it turns out that it works just fine. You can overthink these things. As the computer programmers say, "Try it and see."
I started buying cheaper shirts with fixed sleeve lengths when I realized I always keep my sleeves rolled up, so who's gonna know my arms are too short for the shirt?
I allow myself to spend money on quality stuff in a few narrow hobby areas (even though I know I don't need the quality), but otherwise I try to enforce a cheap-and-disposible policy.