I guess I'm an old stick in the mud, but when I got my first Grand, I knew that was it...YMMV. I've no desire for VV, especially with the 18350 batteries and taller height. I can have multiple resistances and power with multiple RM2s (and eventually, more than two Grands). The Mini 2.1 is the same width and depth, not that much shorter, and it requires another set of batteries (18490) to maintain. The 14500 Mini is smaller, but only has the capacity of a small eGo. I'd consider one for my tiny never-smoker, vape-sipping wife, who took over my USB eGo.
Our Holy Grail is a 18650 Woodvil with birds-eye maple door, and light to medium stained body with visible grain. I'd gladly even maintain 18490s if all we could get is the smaller one (it's mainly for her).