DW is nice but I agree that IMO it's overpriced (perhaps purposely). Admission is $74 with taxes/fees for an adult, or $86 with parking (parking fees are just another part of the admission cost). And this doesn't include the water park. There's just not enough there, IMO, for $74/$86. But obviously they can get away with it since it's usually very crowded. Tourists are already in the area, so they're going to go to DW regardless of price (up to a point of course).
Holiday World is $45 and includes the themepark and waterpark, plus free parking, soft drinks, and sunscreen.
Even Cedar Point is only $52.79 with tax/fee right now (plus $15/$18 parking).
Heck, even the expensive/overpriced Disney World ends up $86.53 per day with tax if you buy a 4 day ticket, but that includes going to a separate themepark each day. Plus $20/day parking.
Seaworld Orlando's one day ticket is only $5 more than Dollywood. And Seaworld Orlando and Busch Gardens Tampa's two-park ticket is the same price as Dollywood's; both $99. And SWO/BGT's gives you four parks to choose from (two themeparks, two water parks). Or a three day/park ticket is only $109.
I don't know where you got the Disney ticket price information but a four day park ticket at Disney is well over one hundred dollars per person. Not $86. And Ticket prices at Dollywood Main Entrance are $65 and parking is $10. Spreading misinformation is defamation and can possibly get you into trouble on this website. Here's the ticket information for your enjoyment...
http://www.dollywood.com/Tickets/buy-tickets