woot!

[JOHNNYMAXXIMA]

I'm not sure what the most expensive part is, but I so know that my brother has gone through a couple sets of blades. If I'm not mistaken, I believe they are wood? I don't have that problem with my Heli-Max as they are plastic blades.
I am definately no expert when it comes to flying these things, but I do have the hovering down along with all of the basic left, right, foward, backward, 360's etc. So I will tell you what I would recomend is to start off slow, don't try and get alot of altitude right away. Stay closer to the ground initially and practice your hovering. I made the mistake of thinking that I was good too early and had some higher altitude crashes (higher altitude as in 10 feet high) so get comfortable lower to the ground first, then work your way up from there.
Hope this helps a little.
John