Paying in full before delivery???

I've seen this often in forum discussion - many just don't seem to understand that dealers purchase their stock from the manufacturers, they're never "on consignment". That means in this case where the unit in question was already at the dealer that it would have already been paid for and therefore any incentives for the dealer to purchase the unit would have already been accounted for. In other words, there is no price advantage to the customer to pay for this unit now rather than later when he picks it up. Clearly the dealer is wanting to get his money now rather than later, but that should be his problem, not the customer's. The argument that end-of-the-month incentives would be lost if the unit wasn't paid for in full before the end of the month is hogwash. Personally, if I didn't want the trailer for another couple of months there's no way I'd pay for it in full before then.