I so agree with this, though I have a slightly different take. As someone who can't part with my GUIs, I'm nevertheless super jealous of all the i3 folks.
As such, what I want is basically i3 in a gnome window. That for me would be the best of both worlds. I can do all my fancy i3 stuff but still have a crisp, efficient UI to get settings/stuff done when it's about ease of use, not speed.