You also have to look at this from a marketing standpoint, Stern is out to sell machines. They do not care if they go to pinball players, or sit and never be played. Kiss has one of the largest social networks around (the Kiss Army). So if I am looking to expand my pinball sales, I want a title that has a large well established following and the disposable income to spend on merchandise. The Rolling Stones, Ac/Dc and Metallica fans all did. Star wars is another license that will drive the sales of pinball machines into Non-pinball players hands as collectibles. So if you like Kiss or not, making the pin could be good for Sterns bottom line and that is what it is all about, a profitable bottom line.
Just my 2 cents