RE: HPI nitro rush
I wouldn't get a out of production vehicle again. From experience with a MT1 the parts are hard to find when you need replacements and when you do find the parts they can sometimes be ridiculously expensive(I'm talking I seen parts the sellers wanted over 5X the price of the equal part on a MT2). Only thing I was lucky was with modifications MT2 parts fit on perfectly fine on a MT1 but you will not have that luxury with a Rush.
So I agree with Montana Mike if you decided to go with a Rush buy any part you can when you see them for spares.