If you could have any modification or addition to your heli that standard equipment today won't do (for the price) what would be your most requested feature for your heli?

No X/Y/Z autopilots, I mean sane features that advanced pilots would like, and novice pilots think are missing from todays reasonably priced helli's. Reasonable means not cheap. Gotta be willing to spend 50-100 bucks for your idea.

Use your imagination.
Think long think hard. I'd like to know.