I would guess more people are closer to a theme park owned by Six Flags than they are parks owned by Busch Gardens or any other company. As a result, those comparisons are, in a way, a justification for traveling hundreds or thousands of miles, across the country or from overseas, to go to WDW versus a drive to your local park. I for one, live within 30mins of a Six Flags (Great Adventure) and I honestly can't remember the last time I've gone, the last few experiences were so awful, and the prices so obnoxious (even in comparison to WDW). I know since my last visit they've made more efforts to be family friendly, cut down on local gang problems and beefing up security, but I've still not felt the need to see if it's gotten any better, and friends of mine that do go seem to indicate I'm not missing much. If I did go, it'd probably take a day off of work and go in the first half of June, when it's open every day but most local schools are still in session.