As Missleman said, the Sig 1/5 Cub is a better kit than the 1/6. It's newer, incorporates all the latest kit technology, and it probably flies better (educated guess). If you like building as much as flying, get the kit and reuse what you can from the trainer. I still think you'll pay a bit more for the kit in the end (building seems to necessitate lots of side trips to the LHS), but if you're a builder, it's more than worth it.