I have to say it is expensive for a "toy-grade" helicopter! As stated you typically can't buy another helicopter without buying the whole set-up with these types.
Here is a used one :
http://www.amazon.com/gp/offer-listi...&condition=all

For a few more bucks you would be better off getting a beginner heli from Blade/Horizon Hobby.. At least then you will have access to any and all parts you would need .