I have studied the New Bright buggy at Target. It looks pretty nice for $100 but there is NO source for replacement parts. Being an open wheel design and large scale it will be very easy to break plastic suspension arms that support the wheels. Once you break one of the these parts you will have a $100 door stop.
For $120 you could buy a 1:10 scale Duratrax Evader buggy or stadium truck. This truck is very well supported with assembly diagrams, detailed manuals. With the drawings you will know how to remove/replace every single nut, bolt and part on the vehicle. It will also provide all part numbers to buy spares. Duratrax dealers are all over the place in the US and Tower Hobbies online has everything too.
You will need to buy one or two 7.2 volt battery packs and a charger as well.
Check out the Duratrax Evader here:
http://www3.towerhobbies.com/cgi-bin...=LXSGU7**&P=ML
Evader exploded diagram:
http://manuals.hobbico.com/dtx/dtxd29-exploded.pdf
Evader owners manual:
http://manuals.hobbico.com/dtx/dtxd29-manual.pdf