In my dealings with Best Buy, no issue with most consumer electronics in opening the box to check them out–typically no restocking fee (unless things have changed) with a return. And unknown when SanDisk will be releasing info.–this is a new product. So maybe open the box and become the expert?!?
Don’t count the Clip Sport out–a 25-hour battery is a nice thing, and I understand that the screen is an improvement over the Zip.