I'm from the school that advocates a basic set of lenses, prioritizing getting close. I shoot a lot of different stuff, but all I really care about is people pics.
I've got a few too many lenses now. I used to think my 50 Nokton would be useful, but I don't now, and REALLY won't when I get a fast 75-100.
Although I inevitably shoot a lot of scenic stuff in the course of hiking, 35mm cameras are the wrong tool. Years ago I had an 8X10 before I had a good 35 (8X10 replaced my Mamiya Sekor Pentax clone). I'm looking forward to an 8-10mp APS fixed lens digicam for that...perhaps the new Sony.
Alternatively, maybe I'll start toting Century Graphic again...got 3 modern lenses, need a 47 and a graphite tripod.