Yes I am as far as pinball themes go. There were many naysayers that Iron Maiden wasn't popular enough of a band, and now after playing it I see a lot of people saying although I wasn't familiar with , or don't really care for Iron Maiden the game is great. I believe it is selling reasonably well.
If you base interest in theme on album sales Iron Maiden has 100 million worldwide, Megadeth is 38 million , Slayer shows 15-20 million.
(ACDC 200 mil, Metallica 125 mil, Aerosmith 150 mil). So it appears they are hitting a smaller market with each release.
I think that is arguably a large enough fan base to merit a theme for a pinball. They have an iconic mascot and artwork in Vic, they are considered one of the founders of thrash metal, and let's face it, rock and roll and pinball mix very well.
There are definitely artists otherwise that would be deserving of a theme , but perhaps not as accessible, and in my opinion many whose music wouldn't jive too well with a game as fast as pinball.
Anywho, I'd be in on an LE.