Other folks can check my numbers but if you buy any ARF kit, say that $70 T-Rex, that will have ZERO electronics you'll still have to spend:

3 cyclic servos.....say $15/each: $45
1 gyro with a tail servo: $90
3cell LiPo, say 1800 mAh min: $45
LiPo charger (decent one w/balancer): $85
35 A ESC w/2 or 3A BEC : $45
25A BL motor: $45
Decent Tx/Rx 6CH (72 MHz): $100
or a Decent Rx/Rx 6CH (2.4 MHz): $250
Shipping because I doubt you'll get this all in 1 online store: $25 to $50

So you're looking at a total of $550 or more to get something that is ready to fly (RTF) from one of those kits. Maybe you can cut $50 or even up to $100 off that number, but to me that Esky Belt CP V2 for $229 looks real damn good which is why I bought it.

About 1/3 of the ppl who buy esky products are not happy with the servos & the 25A ESC, but you can upgrade all of that for $150 and still spend less than on a ARF kit.