My cheapest (meaning I spent the least on it) guitar is my 70's Reissue MiM Strat. I don't see it ever leaving my house, but I would say that about any of my guitars. I take my time, buy used, and they stick with me for the long haul.
For me? 4, because Gibson only put out 3 different pickup types (that I want). P90, Humbucker, Minihumbucker. I realize there is the p100 and I'm sure there are a ton of variations of humbucker, but I went with the ones I like and I don't need another humbucker in a guitar.