What's the difference between a site shop and a user shop?
A site shop is one that is stocked and maintained by the Neopets site. These shops will have a shopkeeper with whom you can haggle to lower
the prices of items you wish to purchase. Site shops are
automatically restocked several times an hour. User shops are
maintained and restocked by Neopets users. Only items selling for
less than 999,999 NP
can be sold in user shops.