i am with you on this. i have some more electrics, but would be perfectly fine with my es339 and 000-18ge alone. when shopping for the acoustic i had a hard hard time deciding between the hd28/v and the 000-18ge... well i might get a hd28 too someday. you know, we need a backup .
I had a nice two-guitar collection, a 2002 Highway 1 Strat and a Martin 000-15. It was great and seemed to cover what I needed, but the Strat had to go away for about a month for new frets. So, in my electric withdrawl, I bought a CiJ '62 Tele.
that is for me, not too much and not too litte, exactly what I would want.
I will certainly vouch for the idea that smaller/fewer is better as long as they are higher quality apiece. I think that having fewer options forces you to think about adapting music to your person and creating 'your sound', instead of resorting to imitation. When you have every guitar of every configuration with every amp, its easier to just fall back on classic combos/tones that work but might not necessarily be that original or creative.
nothing gets those creative juices flowing better than scarcity!