Being a console-exclusive, kind'o power-user Vi 7.3 user, I must say the Vintage mode catched my interest pretty fast. I guess if you keep on implementing the core features (navigation, selection), you may well convince many people to switch. Many vim users would be happy with the 20% Vim features they're used to. Some may never consider using Sublime for it's not FOSS, but most of them already run proprietary GPU drivers, so you never know
Please, consider keeping it and working on it!