A RIA 1911 was my first 1911, bought the day after my 21st birthday. I've had others since then, but that RIA is still in my gun safe. I've no idea the round count through it; all I know is I finally had to replace the recoil spring when it no longer reliably cycled, a few years back. I also found out that yes, you CAN shoot a 1911 until it gets too dirty to function as well.
I dunno if I'll part with it. I'm not particularly -attached- to that 1911, but it's functional and reliable, and not worth much $$ as a used RIA, so there's not much point in getting rid of it.