I use fewer lenses, but I own more. I've definitely developed some favorites, and while they may not be my most expensive lenses, I know exactly what to expect from them, so they get the most use. That said, I occasionally find myself in a situation where I need a lens that I don't own to take the photo I have in mind. So I go out and buy that lens, and then never return to take that photo. Hence I now own a bunch of lenses that fill gaps that I only very rarely ever call upon.