ORIGINAL: B.L.E.
A typical progression goes kind of like this;
Start with a .40 size trainer
Switch to a .40 sport plane
Switch to a .60 to 1.20 sport or scale plane.
Get your first "big bird" and become a total big bird snob, forgetting all about your smaller planes
Auger in a $10,000 scale plane on it's maiden flight
Quit the hobby in disgust and ride motorcycles for a while
Rediscover your old .40 trainer or sport plane and how much fun they were
Unfortunately that can be so true. I personally like to fly anything with wings, but there are a lot of guys that self proclaim themselves as better and isolate them from the guys flying smaller planes just to make themselves fell important. yuk.
To me the lesson in BLE's comment is NEVER sell your trainer,,, and he is right. You always come back to them when you want to just relax and fly.