I actually don't think WoZ is going to drop in price.
(I don't care if it does, Pins aren't investments for me, they are toys and I like my toys.)
Some people, I think, think that the moment Stern slaps an LCD on a pin (even a good one with an awesome theme) - it will shatter the WoZ bubble. I don't think there is a WoZ Bubble. I know some people hate the theme but you know what - some people love the theme and not all of them have bought, yet and many-many people haven't even seen the pin in person or know it exists at all.
Scarcity will drive the price up. Specifically, I think RR's will stay the same or increase a little but I think the ECLE's will see the real increase over time - going for about the same as the RR. As production switches to Hobbit at the factory, the supply of WoZ's will dry up.
I *think* JJP's production facility is agile enough to retool quickly between games but I don't know that the supply chain is going to support that agility by the time Hobbit's are rolling to the boxing line and Pat's game starts up later. I don't know when 'later' is but I see them having their hands full producing Hobbits and Pat's game for the near future, which will dry up the WoZ supply.
Then there's the stern-effect. As those prices rise, so will the rest.