I've done this, too.
My P220 was my favorite semi-auto for eleven years, right up to the point when I got my CCW and realized it wasn't a very comfortable IWB. I've since sold it to my atemi ryu instructor (who is also a buddy).
My preferred pocket carry for a couple years was a Kahr PM9. Then I discovered how much easier it was to pocket carry a 442. Not as flat as the PM9, but its shape doesn't print as much. And I shoot the 442 as well as I shot the PM9, so... the PM9 now belongs to my atemi ryu instructor's wife.
For a while, I was on a big CZ75 kick. Great gun, but there are others I like as well for shooting, and better for carry. My best friend shot it one day at the range, and scored bullseye after bullseye. I could tell he just loved the gun, so it became his birthday present that year.
Got a Glock 21 to try my hand at GSSF. I liked the GSSF crowd, but found that the G21, while reliable and accurate, seemed to have been designed just to annoy me. Trigger guard shape and my hand fit in just such a way as to bruise my middle finger's knuckle every time I shot it. I highly recommend Glocks, as far as function goes, but they just don't do it for me due to physiological constraints. The G21 ended up as a trade-in at my LGS.
My DW CBOB is safe from any future sales, but I find it easier to quickly reload a double stack magazine.... didn't realize this until I got into IDPA recently. I perform better under move and shoot conditions with an M&P than the 1911. Heresy, I know... but I've never been one to argue with actual results.
We'll see how long my M&Ps last... so far, though, they are doing well.
I don't worry about it overly much. As Ralph Waldo Emerson put it, " A foolish consistency is the hobgoblin of little minds, adored by little statesmen and philosophers and divines."
