Electric is nice because they tend to be less expensive. You get get some pretty quick ones for around 70 dollars. And for a good gas vehicle the price tends to rise.
But you have to think, what will be more fun in the long run? I'd suggest you purchase a gas truck for starting up in the hobby again. It is a nice off-road vehicle which can do alot more then say, and electric car. An electric car cannot climb up rocky hills or zip around you're back yard, there more intended for racing.

My self, I have a Revo 3.3. It is my first RC vehicle as I am new to the sport. It cost around 600 dollars once the actual truck and supplies are bought, and it will last a lifetime. Sure, it may need a few new parts after a long time from wear and tear, but every vehicle is like that. The Revo 3.3 is what I recommend for you. It is fun, exciting, and has a top speed of 45mph+! It's built by Traxxas, which also released the Tmax as well, a nother popular off road truck.
It is generally up to you though. You have to find a vehicle that suits you, one that you think you will have fun with.

Overall, you should get a Buggy or Truck that runs on fuel, eletric can be a little cheep at times.

Thanks!