Yup, I (predictably) agree with what everyone's said - as long as you can afford it, you should buy what you want. I like to have a Noah's Ark, a couple of all my favourites - SGs, Vs, Teles, Strats, LPs. But that's only 10, not sure where all these others appeared from...
For some people, guitars are "just tools" and they probably only own one or two, but for most of us here guitars have some kind of magic that goes beyond wire and wood. Just as other people are into cars, or clothes, or jewellery, or... stamps. :?
I sort-of disapprove of these (mythical?) collectors who buy 1959 Les Pauls and "lock them in bank vaults". But even if it's just an investment, they must have some genuine interest in the subject to do the research and be sure they're not buying a lemon. And again, if they have the money, it's up to them I guess...