You are going to get all kinds of opinions. I hate Duratrax. Don't think I would buy a Smartech.
If ya can afford it go with HPI, Ofna, Associated, Losi... Some of the more known brands. Figure out what ya want, then ask questions about it. Search the forum. If you know of a place near that are running nitros, check out what they like.
You will definitely need a temp guage for tuning. Go easy on the break in, follow the owners manual.
I have an X-term, and a Savage. Both were easy to tune and keep a tune. If ya get on the buggy forum, the x-term is a basher pos and you need to spend a lot more money on one. Don't think anyone can say they aren't tough as nails and the 24/7 is junk. All of the cars have their weak points.
You have been in the hobby long enough that you know what ya want. What would be the next electric you would get? Ask questions and see if the nitro engine it comes with is easy to tune. Here is one I thought about getting, but not much info here. Still thinking but just ordered a truggy.
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXFSK5&P=
Want onroad? Just change tires.
Oh yeah.... Once ya get the smell of nitro... You will be addicted.
