Why Did Flight Deck Never Catch On?

Image: http://1.bp.blogspot.com/_hSZo5vjiPmQ/Sh6fcnRWt1I/AAAAAAAAGHU/NhScRzcNR-Q/s1600/P5270002.JPG

I think I have the only one I've ever seen on a bike. I still like it, I like how it mounts, I like how the buttons work, I still look at the gear indicator, I replaced my 9-speed one when I...