I quit because I got tired of fiddling with them, even the Colts. This wasnt a decision made lightly either, I carried a Colt 1911 (the only ones I trusted to carry), and mostly Commanders, on a daily basis, most of my life.
Of the last five 1911 clones I bought (Springfield and Kimbers), all had some sort of issue, right out of the box, and required work. Even the Colts needed "something" done to make them usable to me, so I just went on to something else, and never looked back.
I kept three Commanders, and sold off all the others.
Box stock SIG's replaced them, and even Glocks are starting to drift back into a holster now and then. They work out of the box, and need nothing more than ammo in the mags. None of the "break in" BS either.