Can't argue that, but it would be nice to have the option. For me, $20k is a bit too steep for that option though, seeing how my "mission" is not THAT important. In reality, I'd maybe use such a system maybe once or twice in the life cycle of my Tango. I'll just wait it out on the ground and buy $10k worth of cookies and iced tea. It does make for interesting conversation though.
Agreed. The only design I've even contemplated a full de-ice system for was the long distance high-speed turboprop design I've been working on. Then again, my only other design thus far is an LSA and we can see why there's no need for de-ice/anti-ice on that.