Keep it and fly it again and again. Becuase you never know when you're going to crash the other one.
There's only 2 types of RC fliers.. the once that crashed already and the once that's going to crash.

it's disminishing skill and it always good to practice proceedure turns, flying at slower speed, touch and go.
The more types of models you're familar with the better flier you'll be.

You can get a trainer to do torque rolls or hover.

plus you'll never know when you have to stop flying becuase life gets in the way.
If you decide to pick up R/C after you stopped..this way you'll still have a trainer.

but if you really wanna get rid of it...
make a spud gun and have your buddies shoot at it when you're doing a victory roll over the flight line