Now that the Estes Saturn V is returning in the upgraded 1969 form I find myself wondering if I should sell my last unbuilt 2157. I have a built one that will probably never fly and will add several of the 1969 once they hit the shelves but what to do with my "backup" kit. See they are selling on ebay for around 100 right now and that pays for a 1969 and then sum. but once its gone... Opinions?