Hi, I'm looking to buy my boys (2)an RC truck or buggy and found locally the duratrax evader ext for $150 with a charger, batt, and radio included. I checked ebay and found the same thing for $140+ SHIPPED but time is short. Is this a good unit or a piece of junk? I read a positive review online and saw some used units on ebay but don't know if that is buyer's remorse or upgrading.. I originally didn't want to spend much more than a $100 each but see that is unrealistic unless I go mini or micro scale.. 1/16 (?) TIA, Kief.