We've discussed pistols we hated, and pistols we let get away.
So, which handguns did you almost get, didn't, and learned later that you dodged a bomb?
For me, it was a Springfield Mil-Spec 1911 .45acp.
Cool gun, but I was not in a good financial spot for that rabbit hole.
(Edit to add) I also was thiiiis close to buying a Colt 1911 in .38 Super a couple of years back, but got a 92 Compact instead.