Totally.
I think everyone these days is a bit too worried at being able to say "I did all this myself. I wrote it, played and recorded all the instruments, mixed and mastered it, drew the artwork etc etc"
When actually collaborating with a decent bass player/drummer/guest guitarist might actually benefit the project as a whole musically and from a production standpoint.
Just about every single one of my friends is a musician of some kind. I know for a fact that I could get hold of a bass, drum kit, cymbals, guitar or amp in a couple of hours from a friend if I wanted to record some stuff and didn't have equipment of my own.
Music to me is all about the chemistry and creativity you get from working with other musicians. I suck at writing songs on my own but when I get together with the guitar player in my band we write some great stuff by bouncing off each other and using our different styles and influences to make something much more unique than either of us can create on our own.