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Verify the price. Most legit dealers give a decent discount on thier demos.Verifty the price by comparision shopping.("Hey...why is my filter already dirty, why are thier scuff marks in the foot well? ? ?"Also: Verify the price.Confirm any warranty issues (full warranty from the date of purchase, or pro rated")Go over the spa with a fine tooth comb. Both you and the dealer should document any damage to the spa, scrapes, scuffs, dents, dings. Don't forget the steps, cover and lifter as well in your inspection. You don't want this showing up at your house with the side panel falling off and the dealer telling you that's the way it was. Have the dealer provide new filters.