If its for somebody that has never used a nitro one before then it all reality i'd be getting them a battery one

Nitro is such a pain in the ass to tune and keep tuned if you dont know what your doing
Anything 2wd and fast in nitro will be a pain to control on tarmac as it will be spinning the wheels most of the time so good throtle control will be needed
Some nitro's dont have reverse either so if your facing a kerb 100yards away you got to run over there and move it
ok you get longer run times but if you start messing with it you'll end up putting it in a cupboard and leaving it there

All points to think about

Your better off with a battery operated one as there so easy to maintain and uprate
also 7.2v batteries on ebay are so cheap now that you can carry loads round with you so plenty of run time , putting a faster motor in will shorten your run time but will give better smiles
Fast chargers are also cheap enough off ebay so if you got plenty of batteries you'll never be without one thats charged

I would think you can get a battery one off ebay or out the ad-mag for anything from £30 - £85 and a nitro would start at about £100

Choose wisely lol