Six Flags need to learn that the customer is king. They don't understand the concept of customer service, or listening to critism.
We visited the park, at Valencia, CA, last season, and the experience has put me off Six Flags for life. They ignored my complaint, and didn't respond when we wrote to them.
Basically, the lines were so long that it was impossible to ride more than 3 or 4 rides in a day, and the new Xtreme ride had a wait of more than THREE HOURS.
The place is scruffy and dirty. The toilets don't get cleaned (ever) by the looks of them.
Learn this, Six Flags, if you want customer loyalty, learn to LISTEN to customer complaints and at least have the courtsey to reply, when you get a letter!!
GIVE SIX FLAGS A MISS, is my advice, there are plenty more parks that keep clean and tidy and give you value for money.