Excellent points. Compared to some other hobbies like boating, motorcycles, classic cars, and women, shooting is relatively cheap as long as you stay away from the real high-end stuff like express rifles and Parkers.
I get the urge to dump stuff at times because I feel like I'm not using it enough to justify the associated loading stuff, optics etc, but really I think that once I get something set up and ready to go, I get bored and want another project. When I was playing with computers, I enjoyed putting them together, installing software and drivers, etc more than actually using them. Maybe I'm carrying the tinker gene.
Think I have the same problem, like working on them too much(wouldn't be a problem if I was a smith, expensive hobby for a carpenter)...Really isn't a money issue, no my wife hasn't said ANYTHING about how I should sell the ones I don't use. At this point I'm keeping the 8x57, the pair of 270's I'm building(for my boys), a couple 10/22 carbines and POSSIBLY my Mark VII in .300 Win Mag(figure I'd take too much of a bath on that one).
Selling my CZ550 to a buddy of mine, the rest I'm taking to a local ffl to get sold. I guess getting down to 2 personal rifles would be close enough.