There are a lot of ways to make radio controlled aircraft at a much more reasonable cost than the ready to fly kits you can buy.
Whereas the kit may cost you upwards of £50 to £100 a little DIY and ingenuity can reduce that to less than £10.
The radio and receiver can be bought for around £40 and will last you for many years.
Hobby King and many other suppliers will have many options for you.
This video covers a few small tips to reduce costs even further.
have many how to videos and free to down load plans.