I assume you don't drive the car very hard... Only issues I can think of that you'll need to think about are upper oxygen sensors, water pump, maybe some suspension/steering components. Total for all of that is waaaay less than payments. Keep the car - especially if you enjoy it!
You might also consider doing some things that may IMPROVE the car.
1. A nice tranny fluid & some friction modifier will improve the shifts.
2. The throttle hang fix will also do a lot to improve shifts (TH fix, see the FAQ section).
3. Combat the headlight hazing & other issues with info from the How-to section.
Lots of great info on the site, look around & pick-n-choose what you like.
Finally, to really enjoy what the car is meant for, head out for a Dragon Run with us in the spring or fall. Check the Southeast forum for info, and also have a look at the
Dragon web page to see what it's all about.