I was able to pick up 2 boxes of Estes engines at Micheals this past weekend using 50% off coupons out of the newspaper(comes to about a buck a motor) . I also have a few 40% ones. I'm going to use them for the "D"'s they have there. I have until Saturday to use them. The way the prices are for engines, I'll be looking for coupons every chance I get.