I got extreme Ghostbusters toys for Christmas and their unopened still in the box and I’m curious and how much they’re worth and I can’t find anywhere where I can find an appraisal on how much it’s worth. Can someone help me? 
I suspect the reason why an appraisal list has never materialised is because the worth of these things is always speculative… as I find myself saying with growing regularity these days: “it’s worth whatever somebody’s willing to pay for it”.
The only thing I can suggest is maybe look at eBay, see if there are opened/unopened versions of the toys there and use those to calculate a rough figure to set either as your starting bid, or as the buy-it-now mark.
Even eBay can be unhelpful: I had a chance to buy a basic edwardo and Kylie, the guy wanted 30 each from a guy, I told him I’d at 30 for both, said it was too low and he could sell these on eBay all day long with these prices due to trendmasters being gone. I then showed him the eBay prices. He kinda looked like he got caught but the told me to ■■■■■■■■.
The figures arnt worth much. The ecto and proton pack and trap are the only things that go for decent money mint in package. Other than that I wouldn’t pay more than $10.00 for one and that if I’m feeling froggy ! Lol