If you plan on racing yes. If you plan on bashing no. The RC10T4 is not that durable by bashing standards. The parts are so cheap though that you could get away with it but I wouldn't recommend it. If you want to get into racing the 2WD truck class is a good place to start. Check with your local track to make sure they have the right classes for them. For even more fun beginner (and advanced) racing I recommend the Traxxas Slash. I have so much fun with mine, and heaps of people race them at minimal cost.
I bought a used T4 as my first race truck, I put a Castle Creations Sidewinder w/ 5700kV motor. Now I'm already upgrading to a Factory Team T4 w/ a Mamba / 5700kV setup. Definitely run the T4 with Lipo/Brushless and you'll have more power than you'll ever be able to use.
This 166+ page thread should answer every T4/B4 question you could ever ask! RC10B4/T4 Forum