Nitro is more of a pain in the backside, there is no doubt about that. Whether it's worth it is down to the individual. I found it worth it for many years. The sound and smell as well as the satisfaction of learning how to tune engines were some of the best things about the hobby for me for a long time. Nowadays I like electric for the opposite reason that I liked nitro when I was younger (no noise, no smell, no oil, no finicky tuning), but as I say, the trade off is set up cost. You'll need a good few batteries and a good charger, which you wouldn't need if you went nitro.

I'm not advising you to go either way, go with whichever floats your boat, but bear in mind, a good and reliable electric setup with some batteries and a charger will run you a more than a good RTR nitro. As I said though, it's a worthwhile investment, because batteries and the charger can be used for many models making the 2nd electric car you buy much better value.