Want to know the prices in hk.

Where th hell are you in the US?

if your order in HK and ship them to the US. it just pretty much the same price as you buy them locally.

but just like you said, most RC stores in the US are selling buggy, 4WD and nitro car.

US guys are not so interested about 1:10 EP touring or RC drafting

if you need a charger, you must take the 110v in the US. a good adaptor can be expensiver than the charger