I wonder if it is partially because they think customers who do this are buying good deals to try to flip them at a better price, only returning if they can't sell them. Especially when we are talking about 10's of thousands of dollars worth of purchases and returns. I have done this at REI for years with no problems. But then again I pay a premium at REI in order to enjoy their satisfaction guarantee.
3/9/10 at 10:19pm