The prize is one pet slot for 500,000 quests completed :).

Because we set a goal and you guys are going to make it. That's awesome, but it doesn't mean we're handing out extra prizes ;).

We aren't adding any additional prizes to the Quest-A-Thon. We stated very clearly from the start what the prizes were (pet slot, forum title) and don't want to pull a SURPRISE YOU ALSO GET X (because some people might not have participated for the slot but they would for x etc)

The thing is, if you've got 10 pets you are using a perk of the gold account.