I don't know why these things bother me so much? Maybe it's the fact that there are so many good options for frames and slides to purchase that have a known quality? Maybe it's the availability of decent base pistols that don't cost more than what you would pay for just a frame slide and a barrel. Maybe it's the fact that no one will buy a second hand pistol built on an 80% frame? Maybe it's the fact that no Gun Smith will ever touch your pistol that you built on an 80% frame if you have issues? Maybe it's the attitude that most of the guys have seeking information on how to build their 80% frame? Those are just a few of the things that bother me about the 80% frame. I consider myself a DIY guy and want to try to do everything I possibly can myself. However using an 80% frame has never crossed my mind. Am I way off base here?