The fact is, what SideshowAlex is failing to mention is that although SSC has to pay more to Disney, Disney is delivering what will likely be the highest-profile movie series of the next decade, with massive exposure and marketing dollars.... meaning LOTS more people lining up to buy 1/6 SW collectibles.
So - honestly - "blaming" Disney isn't quite fair. They're going to be spening several hundred million dollars in marketing pushing the SW brand. SSC will - in theory - sell a whole lot more figures due to the tsunami of SW created by Disney's efforts, so the justification for jacking up prices (to the degree they have) doesn't quite wash.
While there's been a few mutterings about a new Indy movie, it's still in very early planning stages, so there will be no media support whatsoever for Indy collectibles in the next 2+ years... so Luke X-Wing pricing just wouldn't make sense for this Indy. Indy appears to have been a tough sell at $100 - how's $250 going to work?