Quoted from goatdan:

It probably has to do with how the agreements were made with Disney. Remember, POTC wasn't expected to be a crazy hit when then first made it, and so no one was signed on for long. Hobbit was fully signed by everyone before it started, for all the movies.
When you have rights spread throughput multiple parties, the difference in cost can be extreme, since you'd have to pay lawyers to talk with multiple parties and to make it worth their while to talk. If Orlando Bloom for instance wants $10,000 for his assets, buy its going to take a $500 / hour lawyer twenty hours to write up the contract for him, it now needs to be $20,000. On top of that, you need your own people to talk to theirs, so now maybe we're at $30,000 and a week of negotiations. For one character.
I don't know if Bloom is tough to work with, but this is how this sort of thing works. When the rights are all divided up, you could be talking about absolutely tons of money to bring them all together, and that's only if they all say yes. Certain actors (Bill Murray comes to mind) generally don't do anything, no matter what. I'm still impressed Stern got him on Ghostbusters.

Quoted from CaptainNeo:

i've done purchasing for companies for years, and did them for companies that made parts for bally/williams in both metal fabrication and printing. I know a lot about what it costs to make what in the pinball world. Stuff it not as expensive to make when you are buying in bulk from a manufacturing perspective. It's not like buying from pinball life/marco/bay area. You guys look at these sites and assume manufacturers pay close to those prices. that is not the case. When you are making 1000's of games, the price for parts, assembly, programming and such drop significantly and only gets less when more games are made.

Quoted from branlon8:

Me personally, I think lots of scenes and music from the movie are a big negative. If I want those I’ll get the blue rays and soundtracks - it’s a lot cheaper. I really enjoy original stuff specially created for the pinball machine which I can’t get elsewhere.