Demos are free. Also, you can't download the demos(or anything)
from a silver membership I don't think. I'll check right now.
Ah, okay, proved myself wrong, downloading the Conan demo from my brother's account. (silver)
Yup, that's the one.
I don't know why some people consider the N64 a failure, there were a lot of good games on it DK 64, Glover, Diddy Kong Racing, Gex, Super Mario 64 just to name a VERY small number of all the good games for it.