Talk:Water Wheel/@comment-2233664-20110629200553/@comment-3474542-20110630021503

Sometimes Zynga will accidentally release items to the market before they are ready. Usually it's stuff that they're getting ready to release that has the wrong price (like New Year's rabbits).

Also, especially if it's a complex item, they will do a slow roll-out of features so they don't overwhelm their servers, and can correct any errors before it is available to the entire community. Especially in the case of slow roll-outs, an item may appear and disappear from the market multiple times without warning.