From what I see, it makes sense. Have something like a vendor system.

Tagrawr: Pokeballs x 200 [ 0 ] <--- you would input the amount you want to buy it shows the amount I'm selling or something like that

ahahaha someone with same idea of mine.... posted once somewhere but I'd say its an awesome idea... but i don't think you can sell 100 items at once or it could over load the server and break the game, just like when you try to hack your pokemon game in emulators and accidentally entered over the amount that can produce then it freezes.....there should be a limit of items you can sell...

if i understand the idea correctly, then the idea has already been suggested by me. check out my thread for a better example.

yea the idea isn't bad since the market is always full with lots of pages of pokeballs so i give the idea a 8/10

i think this is a good idea, it will make it so the market does have so many items! i give it a 8.5/10 :)