I think the JJP pins are excellent. I've played WOZ and the Hobbit on location and though they were excellent. I agree that they are expensive and I really dislike the trend with stern and JJP to have multiple versions of games. The games get so stupidly expensive that its nut to even consider.
What really aggravates me about JJP is they have the collector games with certain things not available on the other games. Most of it I could care less about but some things are really cool and when its a limited run of 200 and insanely priced, I just feel like I'm missing out on something. Thats what was nice about the old machines before williams went out. There was one version and thats it. I frankly feel as a Pinball hobbyist that its best to just find the machines people don't want. I can have almost as much fun with a 2500 dollar machine then I would with a 7500 dollar machine. No matter how many toys and code you put in, at the end of the day, its a playfield with metal ball bearings running around.