When a few months go by without a significant improvement to usability, interest will wane.
There is this crazy little thing called a brand new written-from-scratch-with-extensive-usability-testing GUI that was revealed last week to rave reviews and while a release date has not been announced more than a few months not a very good guess.
Personally, I'm watching Monero very closely.
Seems unlikely given that you didn't know about the GUI.
I'm less concerned with a GUI and more concerned with bloat. A GUI is a trifling thing compared to that. You want applause for delivering the most basic thing that a cryptocurrency could have? When I said usability, I meant real world practicality. Even if you guys released a perfect GUI tomorrow, I wouldn't shift my investments just for that.