Home gameroom no, but I think on location it would be interesting to see. I had my RFM out for a week with two other pins - a Tommy and a Batman Forever. I expected the Tommy to make the most because it was part of a cross promotion with a movie theater that was showing Tommy, but at the end of the week, RFM had more coin in it than Tommy and Batman put together.
Having said that, I have said this time and time again before in other places, but what innovation do you all really expect? How can you innovate a game to be different while retaining it as a pinball? Everyone says this, but no one has any real idea - beyond the cabinet and infrastructure of the games themselves, there isn't really that much that you can innovate on and still have it feel like a pinball machine. Jack has put an LCD in the back for the displays, put card readers onto the machine by default, and they are supposedly internet enabled. That is HUGE innovation if you care to see it.
Stern, by the way, has innovation too. Their biggest innovation has to do with the USB updates, but that isn't the only thing they have done. But... pinball doesn't need tons of innovation because ultimately the thing that matters - the game itself - doesn't have tons more innovation to do with it. The ball can only interact with the flippers in so many ways, and games that have tried to extend just what the player can do (CP, I'm lookin' at you) don't generally do really well because the changes aren't as good as the flipper.
So anyway, they are all doing just fine. We might see Stern upgrade their boardset to do an LCD or otherwise, but I'll also point out that when Pinball 2000 came out, the hit pinball at that time was South Park. I also don't think that a 'lack' of X-Men sales because people want an LCD is going to happen, either. I guess we'll just wait and see!