I do agree with the Collective only being offered as a hop up but I disagree with it being more breakable. Mostly due to dumb thumbs I have had several crashes with my CCPM Corona and only once did anything to the head. Only the normal stuff breaks like the crutch or bends in the boom. The one time the head got messed up all I had to do is straighten some push rods and replace an e-clip. There is some video of my heli flying on my site but I later found out that the elevator servo was bad and was causing the heli to be unstable. I have more video but my friend needs to send it to me so I can post it. The collective heli is as easy to fly as fixed pitch but more complicated to set up.
Mike