I'm stingy as Hell with any sort of FX loot, but I do tend to give out magic items a lot more than psionic ones. I make a point of throwing in psionic items with psionic enemies, though-- seems more fitting that way.
A lot of it is, I hate a lot of the crystal fetish crap that goes along with psionic items, and I don't like FX tattoos, whether magical or psionic in nature. I really don't like dorjes. On the other hand, I do try to throw in creepy biological psi-items, as well as more standard items imprinted with psionic circuitry and made out of strange materials.