I think it might be debatable if TAG is cheaper then shifters, maybe a little. If your just running practice laps it might be. You can get screaming deals on 80cc karts and yes you can bang out laps pretty cheap. You don’t pay much and your not going to get much for it when your done. If you want to shift then TAG isn’t an option. If thats not a big deal then TAG would be fine.
http://bridgemanbroskarting.blogspot.com/