It is really up to you. Batteries will probaley cost in the upwards 300-500 a piece. That will give you only one 10 minute flight. Then you got to sit and re-charge for 2 hours. Okay, so just get another battery right. Well it takes like 4 to have just 40 minutes of flying. 4 times 500= 2000 [X(]. Then addd your engine. At least 150. And don't forget that ESC, 200. WOW, we are really gettting up their. Oh, and maybe a BEC, 40 more dollars. AND SO ON AND SO ON...... Electric is cool but i really can't afford it. Doing the math, gas makes more sence. You can probabley get about 10 flights on a gallon which is about 10 minutes depending on the needle setting and how you fly. That is 150 minutes of flying per gallon. Now you can by 13.6 gallons for 300 dollars (the price of one battery). 13 gallons will give you 130 flights or 1,300 minutes of flying. Now add that extra battery you were going to get on their and you have 26 gallon, 260 flights, at 2,600 minutes. Most batteries that i have seen loose there charge between 50-100 flights. But with gas, you never have to wait to charge .