Condition plays a large role, in my opinion. I've wanted a DESW for many years and ended up picking up one a few months ago for 2600. The guy wanted 3200, but his idea of "very good condition" and my idea were largely different. I think if you're simply just looking for a working one that an owner just wants to get rid of, expect to pay within that range. But unfortunately, mine looked like it hadn't been shopped since the seller purchased it from an arcade in 1995. Currently in the process of getting lots of work done to it (full shop job, cabinet decals, LEDs, powder coating, etc), which will easily run another 1500-2000 in the end because of all of the stuff I wanted done to it. But it's my one and only pinball machine I'll probably ever own, so why the hell not? If I was a collector of multiple pins, I probably wouldn't have invested so much in it.
I saw one on TNT Amusements for like a day recently. I think it sold for a little over 4K. I doubt the new movie will really affect the value, although people on eBay and Craigslist will try to convince you otherwise. A local slot machine store wanted 6K for one (it was on sale!) and another billiards store wanted 8K for theirs, which I had a good laugh about.
Licensed games, regardless of whether or not the games are good, will always command a higher value.