Lol, maybe it's just because I'm Asian or something but I've ate tons of octopus. Not raw though, when it's been boiled for a short while and we dipped it into a peanut sauce.
It's quite delicious. :)
Anyways, back on topic. I've seen an octopus at my LFS, they're pretty interesting creatures, but like you said, taking care of them is hard and complex. Never going to do a saltwater tank, they cost so much money and time. e_______e;