No, Banzai is a real deal, brick and mortar Japanese Hobby Shop. The deal with buying from them, besides the lower price especially with the strength of the Dollar against the Yen right now, is that Tamiya includes a Futaba Attack Tx/Rx, battery and simple charger with the home market kits only. Not China, US or elsewhere, we only get the gaping void where the Tx should be and the tease in the directions on how to set it up. You'll pay a premium for shipping, but it's not the slow boat HK type, it'll be EMS air and most likely in your hands in about 2 days.

Considering the $100 shipping and that it's priced in yen, so even if you're using Paypal, you most likely will have to add 3-5% for exchange charges, you'll still come out ahead.

Sometimes it's just a wash compared to the AAF museum prices, sometimes not. If you're not in a rush, a mid $500 deal might show up once in a while, but expect in the $600 range. Beware of Chinese stores with little feedback, the Tammy Tiger seems to be their go-to scam.

If you have a Tx, 4 channels is all you need, but the beauty of the Futaba Attack is it's a dual stick (not pistol) surface radio, so both sticks center. If you're thinking about using a Spektrum or AC Futaba, keep that in mind, you'll need to change out that throttle ratchet or rig external springs.