I can't imagine actually intentionally bringing any sort of spider into the house...and yet, I can't help wondering about them.........

How long do they usually live?
Do you typically buy them as babies? What would you feed a baby tarantula?
What sorts of substrates do you use for them?
How much of their behavior do you get to observe? Are they very active?

I do realize the answers to these questions probably vary by species...but just general answers (if possible) will satisfy me for now. I may get more curious about specific species though...

Oh...and one more for Randy, who said he doesn't want to handle them, but likes to keep them:
How do you clean out their cage and take care of them without handling them?

Thanks for edumicating me!