most likely, if your local hobby shop guy is recommending the losi, then he carries parts on the wall for it as well as other brands too. local parts support and avaiablity for any model/brand is a key factor in choosing your ride. also, what do most of the local guys run? the local fast guys should be able to give you set-up help as well.
that said, the losi xxx-nt rtr is a most excellent choice for a beginner to start out with. The truck is more than capable of hitting the track and winning. The radio that comes with it is top notch. there are tons of parts available for it as well as a large variety of aftermarket parts available as well. you can even upgrade it to near drake edition specs if you wanted to. you'll be happy starting out with it.
if you intend to race it, just make sure that there is a class for it at your local track so you won't be the only one running a 2wd gas truck.
one more thing......i know buying online is great (i do myself), but give your local hobby shop guy an opportunity to match that online price for you. if no one buys from your local hobby shop, he won't be able to stay in business for very long.
good luck, and have fun.