Haha truth !!>>> no western riding does not challenge the rider in the same way! You can't possibly understand till you have really really completed in dressage or jumping! This comes from both western and English experience.
Seriously; I'm not sure what I'd do with all the money I'd have if I didn't have horses--or even if they would just STOP.BREAKING.THINGS. I'd probably swim around in it like Scrooge McDuck. Of course I'd probably also be a shell of a person without horses, which would be sort of lame. ;)