Proceed with caution, and make sure you get someone in the know to check the contracts.
I know of several people who have been stung badly by supermarkets. In one instance a company supplied them with about £10k of giftware on a trial basis.
Because it didn't sell quickly enough for the supermarket's liking, they put the stock in storage (for which they charged a fee), and returned it to the supplier (for which they charged a fee). The fees wiped out any profit made on the original job.
I'm not for one minute suggesting that all the big boys operate in this way, but do tread very carefully.