A musician with a computer can do a lot with a little. A good portion of my music, perhaps 30%, uses or includes sounds from one folder on my hard drive called "Field Work". This folder contains about 30-40 sounds I recorded with a minidisc player, then broke into samples. I pounded a bedpost with a hammer. I shook a glass jar filled with nails. I recorded the tub filling, and the microwave beeping.
It's absolutely phenomenal how much music has come from this raw material-- all I have to do is effect or process the sounds, and they just keep giving me more and more good results.
Maybe it's a bit like when Brian Eno pointed out that he likes his bass guitar, because it only has a few positions.