Actually they do. When you are on their web site, the look below the price. It tells you what condition it is in. Here is their definition of conditions:
Excellent
This product is in "like new" condition and shows little to no signs of use. Free from blemishes, scratches, and user wear. All controls are completely functional.
Great
This product shows little signs of use and all controls are completely functional. It may have minor surface scratches.
Good
This product is completely functional and shows some signs of use. It may have surface scratches and/or dings and dents.
Fair
This product is functional but shows signs of heavy use that could include, but not limited to; scratches, dings, dent, chips, and worn parts/controls.
Poor
This product shows significant cosmetic and functional wear. It may need repair and/or part(s) replaced.
The OP's bass based his description , arrived in poor condition by GC's definition. I'll stand on what I said. If that bass was listed as any other than poor, he is due a full refund including shipping costs.
Using this list for leverage is the smart thing do to negotiate a settlement that has saved me hundreds over the years.
i was unclear - guess it's the lack of sleep.
it seems like a lot of guitar centers haven't read that list. but yes, the list does make it much easier to get a return with shipping paid.