Appraisal question:plural + Shop or Store. What value?

[abbadd]

I'm trying to sell one domain name which composed of :
Product ( in plural) + Store (or shop) .com
My question is: the plural kill the value of the name? when can we use the plural and when can't do?
here some exemples of related sales:
ToysShop.com - $250
LaptopsShop.com - $3000

 

[Cartoonz]

sorry, junk.

 

[south]

There was a discussion about shop vs store last year some time. Can't seem to find it right now.