Continue to look at "asking" prices on the web for the same year model.Print out ads and show them to dealer. For used rigs dealers allow buyers of new rigs a relatively small price for the their used rig and cut some off the asking price of the new rig and may offer a near -worthless warranty package for a high price with the new(er) rig. The dealer turns around and asks for a higher asking price for the old rig but will deal with buyer. If you watch "Pickers" they try to buy items cheap and try to resell for a healthy profit. They don't pay market prices for items. Don't have "stars in your eyes", wear your game face, and be careful what you say to each other, there may be microphones. the dealer is only trying to make big bucks selling RV's. Be ready to walk after some haggling, leave your phone number and wait a couple of days. They may give you a counter offer, stick to your guns.Beware, used RV's may be ex-rentals, look for "exit" stickers etc., above doors and evidence of sticker removals on exterior. Rentals may have roof damage from people standing on roofs watching races, etc. Don't buy on impulse, there are lots of RV's for sale. Salesman's verbal promises must be in writing on the Purchase Order/contract. Don't let them intimidate you. Buying any used RV is a gamble, you are trying to make it less of a gamble. New RV's often need a number of factory mistakes to fix. Have them fixed satisfactorily by Dealer before you sign the paperwork. Dealers are often slow to fix stuff properly after you sign the sales contract.