Cheap isn't always bad! After reading so many posts here on this site and others, I realised that most of the problems people were having with control and command of the machines were from poor setup and balance after they uncrated their birds. It takes time and trial and error to find out where that sweet spot is. My HBFP was awful out of the box as far as having much real command of the machine and I did a pretty good job of setting it up first, or so I thought! Then I read and downloaded the great manual offered for free on this site from SSG Scott Helmann dealing with balancing the machine and each rotating component to eliminate as much vibration as possible. Put yourself in the position of your gyro (cheap or otherwise). You are lashed to this frame that is vibrating and bouncing around all over the place. How much extra work is this causeing your servo's and/or tail motor? How long will the cheaper gyro last?
I went through Scott's step by step procedure (learned some new things about my copter too) and balanced the bird better. WOW!!!! It is a new machine!!!! Much better to work with now. The difference was amazing!!! I still have a long way to go but I haven't broken anything new lately and I am practicing every day. Something worked!?!?
Cheap has more to do with longevity I think, and if you take the time to make it easier for the machine to do it's job from the day of its first launch, the longer it will live and the happier you will be with your purchase and what you learned.