Why is nobody considering Ubuntu Phones?

I'd definitely wait until both phones (Jolla's Other Half and Ubuntu Phone) are released and I'll buy the one that has the best support. I don't want another dead end before even buying it like it happened with the N900/N9. And definitely Ubuntu Phones are getting a lot more push than Jolla phones.

What I need is 100% native Linux including real multitasking. Both phones offer that. Hardware keyboard is not mainstream, and if both phones want to sell they know they have to ditch it, even if we don't like it.