It's def an issue I have with FTF gaming (PC use). I played with a group back in the 3.0 days where 2 of the people involved were constantly using/had thier heads stuck in the computer (one was the DM), and it was beyond annoying- I certainly wouldn't let that one instance sour me on something in general, however I'm also of the mindset that If I need a computer at the table to help me run the game, thats not the kind of game I want to run.
On the flip-side, being that I'm older now, a single parent, and have precious little time to game these days, let alone able to commit to a regular schedule for gaming, the VTT was (is) a HUGE deal to me.