i think every argument on this topic has already been made. but if i may add my two cents in. i really don't understand the point of having guinea pigs if you keep them outdoors. i have my pigs for their companionship. they're cage is right next to my couch, so i get to see their antics, and watch them whenever i'm home. if they were outside, i'm sure i'd visit, and maybe play with them for a few minutes a day, but out of sight, out of mind. what would be the point of having them? and they're so fragile, helpless, and totally dependent on us - ESPECIALLY when we keep them confined to a small space with no access to food or water except from us (not to mention medial care). they're not in the wild, or in any position to care for themselves. i guess it feels like they're either hostages or companions, depending on how WE see then and care for them.