I had a similar experience at my location. IME, comparing Houdini to Dialed In from an earnings perspective, had Houdini on location for a couple of months and it earned about 65% of what Dialed In earned its first two months on location. Houdini didn't get that "second quarter" from casual players and expert players could take it or leave it. Personally, I was able to break a million points on Houdini several times, but found the game more work to play than fun to play.

Dialed In did drop off after the first few months, not unlike any other new game for me anyway. That said, Dialed In continues to perform in the top quartile at my location, and it is coming up on a full year in a couple of weeks. Houdini's earnings for the two months I had it were slightly less than a typical new Stern, not bad but not enough to entice me to want to hang on to it. Glad to hear Houdini is doing well for you.