Original Nightmare Before Christmas dolls

[jonseycat]

I would like to know how much the original poseable Applause Tim Burton's The Nightmare Before Christmas dolls I have are worth. I have the Jack and Sally dolls which I've purchased from 1993 still in the coffin boxes. These were originally released with the movie and have never been opened.
The Jack doll is a bit faded from age but other than that they are mostly in mint condition.
I've looked on ebay and nobody has them for sale. These are really rare items and have been out of print for years.
Are there any online sites that have price guides for collectibles as well? Seems like every site I visit is about buying a book and I just want to know if there is a site that just lists everything.
Thanks

[Primrose]

Are they like the one pictured here:

Nightmare Before Christmas Jack Applause Doll - eBay (item 180330712807 end time Feb-27-09 18:05:54 PST)

Nightmare Before Christmas Applause Sally Doll Figure - eBay (item 180343801470 end time Apr-12-09 08:59:31 PDT)