Perhaps the distinction is use. A lot of 1911's will do fine if you want to shoot a lifetime 5,000 rounds through them, a number that few CCW holders ever reach. If you want a highly accurate, high-round-count gun (something that most folks don't need) then an out-of-the-box 1911 might not be what you want (unless you plan to have it worked on).
Personally, I have little doubt that the average Colt will do fine if you load it, put it in a (relatively dry) nightstand drawer, and don't touch it for a few years. It will run the magazine in it and then some. But I'm also pretty sure that I'd want to strip and lubricate it before I tried to put 500-1000 rounds through it.