My "gut feeling" is that the trade-in value will be based on the original price, once they no longer are on sale.
I'll bet donuts to dollars that Robert's gut is spot on.
I 4 1 am excited for something new! My wish list for new items include a MD 64 degree, and a top putter with increments like the level 0 (Master +) Max Control. (available at 10, 20, 30, 40, 60, 80, 100, 200 and 300 feet)
I just played two rounds in a row that left me willing to try any new putter. LOL hell... I may even be willing to pay for a witch to cast a "go in the hole" spell on my putter.