Theme sells and it's interesting seeing some of the opinions in this thread. I'm born 84 and this TMNT is finally going to get me to pull the trigger, just trying to decide on trim. It's funny cause I see something like Munsters and think who would want to play that? 70s babies? Admittely I'm a pin novice though so the rule sets aren't the selling point to me, it's theme. And turtles is big with the 30 somethings.
For me, being an 80/90s kids, video games were everything. And turtles was all over NES / SNES and the Arcades. Sure I don't watch any of the modern cartoons and I'm sure the modern toys suck, but that has nothing to do with it. A pinball machine is pretty close to a video game in terms of demographic and nostalgic kick. It's just another neat toy in a man cave.
For me my first pin purchase was going to be between Simpsons DE, Turtles DE and Mario Gottlieb based on theme. But they all were "meh" games that need a lot of maintenace due to age. I saw Simpsons got remade in 2003 (ish?) with Pinball Party and that was perfect, another one for the 30 somethings. Can't believe it took until now for Turtles to get the remake treatment.
If this thing is even coded half decent (which it appears to be from what I've read here), it has no problems selling out and holding value. I'd expect it to have even more secondary value than Jurassic Park simply from a theme perspective, but time will tell.