I have 7 guitars right now. I must say that after I purchase a guitar I feel all warm and fuzzy inside but after awhile you start to get that burn again. You go to the guitar store and you find that one and only that you just gotta have. I believe its an addiction.......Plain and simple!!!!!!!
I have 7 electrics, 1 bass, 2 acoustics, 1 mandolin. When I was first playing I had cheap guitars of various looks and tonal variety. Now that I've been playing for 18 years I have better guitars but for similar reasons. I scratch an itch, tweak, experiment, etc. then sell. Some become gems I can't sell and others become trade possibilities.