anyone who registers can buy a bag from the outlet. as for "stealing" bags that you have borrowed, it is totally in their discretion whether to allow it and how much it will be. i'm pretty sure that they won't let you borrow a bag for a week and let you steal it if it is fairly new and popular. have you seen how much it costs to rent bags? outrageous! do the math -- if they can rent a bag for $500/month and have a waitlist, why would they ever sell it except for a huge markup?