I used to try to get folks to play on em, nobody in the family or otherwise seems to care much. And I've only got a few friends who will play fighters with me, so I pretty much just buy cabs for me now.
I bet it would be big with kids though, my nephew loves 'em. I personally don't like the idea of lots of little kids being ruff on my stuff (trying to break into the coin-box, kicking the cab, punching the glass, hanging onto the cab by the joystick - yes I've seen all this, after the initial interest, kids get bored).
Bless you with the patience to spoil kids though, I mean it.