As was pointed out earlier, though, moving to $200 is crossing a psychological barrier. It's why many products are priced with prices like $9.99 and $19.99 instead of $10 and $20. I am betting that Disney won't cross that psychological barrier when, as @MouseEarsMom33 said, they are dealing with lackluster attendance and bad press.
You may be right - Personally, I wouldn't want that PR when I'm crying about attendance. But a special ticketed event that continually "sells out" is, to me, ripe for a price hike in the eyes of Josh and Co.