Rumor is false. I've posted on this probably 20 times within the past year or two.
DisneyQuest is not planned to be closed anytime soon, nor is the DisneyQuest at WDW considered a "failure" ( the other DQ locations were, DQ-WDW is not! ). ESPN, last I knew did not even want to take over that building.
Can we PLEASE stop these threads?! My gosh, a new "disney quest is closing" thread pops up once a month!
I used to be able to get one-day tickets for $21, on a MouseSavers newsletter special through Ticketmania. That was a pretty good price. Now I am hard-pressed to find anything under $30. Not sure what it means, except maybe that Disney is happy to continue taking in money from it.
Current price for DQ AP is $89 adult or $71 child. However, you can get a combined Water Park/DQ AP for $129/$99.