I just bought myself a Tamiya TB-02 after a year-long touring car hiatus, and I absolutely love it. Before taking a break from TC, I was using a TA04-R mainly, & I had a TRF 414MII that I never got to use(built for carpet). I dont intend to race at a highly competitive level, so no need for a pro car... just something to have fun with like you mentioned.
I paid $90 shipped for the brand new TB-02 Porsche Carrera GT kit, straight from TamiyaUSA's eBay clearance store. Two of my friends ended up buying the same car, & we couldn't be happier. The car was easy to build, has full adjustability, it's tough as nails, comes with ball diffs front & rear, full ball bearings(minus 4 metal bushings in the steering assembly), CVA oil-filled dampers, aluminum prop shaft, & a Johnson 540 motor... all for less than the cost of an average TT-01 kit on towerhobbies.com. i actually like the simplicity of shaft drive, & it's going to be much better suited to parking lot abuse(no exposed gears for pebbles & grit to get stuck it).
For what you've described, I would highly recommend one of these cars to you. It drives awesome right out of the box, & if you just plan to have fun & do some mild competition, you dont really need to go crazy with mods for the car. Mine is near perfectly-balanced with all stock components, other than the tires. Tamiya has sold them out now, but there are others on eBay for close to the same price new, and I've watched MINT used TB02s go for $50-60 range over the last couple of weeks!