I wouldn't, but I've seen a number of folks on the Fantasy Grounds forums that have expressed interest (particularly for in-person games). The port to Unity will likely make that more of a possibility, though I'd hate to be the person designing the interface for touch. :)
As someone who paid for a mentor-level subscription to roll20 for some time it was pretty easy for me to make the change to Fantasy Grounds. This was my breakdown:
Cost of program. This was pretty straightforward, as I'd easily paid several hundred dollars to Roll20 over the course of my...