Sounds like she was taken advantage of
It's a classic combination of the seller didn't know / didn't care,
and buyer is keen and swift on taking advantage of that situation.
There are at least two threads buying at 350, so it'd be fun to wait and see if anyone would knowingly sell at that asking price.
There are some very generous members on this forum, so never say never lol.
Anything is possible given enough time, and with the right environment (gawd I sounded like one of those Antiques Roadshow ppl) -
no one would thought Weird Dolls would be *this* rare, or the Summer Beach Party Ice Cream & Popsicles would bounce back from (as Skyfall so nicely put it) "couldn't give them away" XD
Personally, I think any fair/contest collectibles should fetch a (much) higher price, since it's something that one has to 'earn' and quantities are usually limited. C:
P.S. For 'special/Unusual' sales like the "Incident of the Blue Balloon",
guess we can use a different color (with bold asterisk fonts?) to indicate that it's not a 'regular' one,
maybe even small spoilers underneath it to include a brief description of what happened, for references and all?
Since these kind of sales are rare, I doubt it's something that needs updating on a reg basis.