The value has appreciated since the final run was announced in 2016. I bought mine that summer when they had completely bottomed out. Not that they're not a lot of car for the money.
Wiring and vacuum seem to be common problems. The gen 1/2 had cork gaskets all over the engine that need replaced if you’re buying a low mile sitter. If it’s been driven they’re probably updated. Check the wiring loom from the door into the car for cracked wiring. Other than that, they’re pretty indestructible.
Take Brians’ opinion with a half grain of salt. My car has a big cam, polyurethane suspension, coil-overs and slicks. A stock car doesn’t feel quite as evil.
If you're set on a g2 keep in mind that from 96-99 they had forged motors capable of stupid HP if that's your bag. 2k was the bastard child because it lacked the forged motor and ABS. Finally, 01-02 received ABS making them a lot more friendly for tracking.