I have not had quite that experience, probably because I never had the money to keep buying guns. Also, my first carry gun was a gov't model 1911, so once I discovered that lighter guns existed, I moved on. I love my 1911, but it's not a carry gun for me.
What's happened to me is kind of the opposite. I keep thinking that I'll trade off my G19, but I keep not doing it. In the past 5 years, I've considered trading her off for:
S&W M&P 2.0 Compact
S&W M&P 1.0 Compact
XDM 3.8" Compact
XDS
CZ P10C
CZ 75 Compact
CZ P-01
CZ P-07
a 1911 Commander
Sig P320
HK VP9SK
HK VP9
and more . . . . . Over and over, I get this close to trading her, and then I sit down, and I remember that I really, really don't like to let go of guns that work. Maybe one day I'll pick up some of those on my list, but I guess I'll have to figure out how to do it without letting my G19 go.