Radio systems. HELP ME CHOOSE

newb quest......?


whats really the difference in radio controlers???

dont they all do the same thing, let you drive the car......

ok, some have digital readouts on them for battery performance and lap times, but who really needs that stuff unless your flying and need to pay attention to your battery life to not crash a plane or heli ????

some take AA batteries, some take a rechargable pack i think right?

so whats really the advantages of this, and dont you need to get a new reciever inside the car then too?

i've always thought that you could use the same controller for multiple cars, as long as you change the crystals when you change cars, am i right or wrong about this?

i need to know because with as much as im upgrading my t-maxx and stampede BL (eventually), will i have to upgrade to a high performance controller too?