I find it interesting that
DVC is the only timeshare that has people that consider buying direct form the developer sensible. It's not a debate anywhere else...
I attribute the 'belief' in buying direct to a misunderstanding of what people are truly buying: the right to use a condominium at a specific Disney developed timeshare resort. Everything else can change throughout the life of the contract.
There's also some who believe that they will be more 'protected' should DVC decide to change its inter-resort trading system. The notion out there seems to be that people who bought directly from the developer will have more choices. This again is a misunderstanding of owning/leasing a timeshare. The bad-old days of timeshares, and the laws and regulations that the original bad-seed deceptive developers inspired, assure timeshare buyers that they are real property that can't be stripped of usage/value.
So I agree that there will always be a debate, but only because Disney is excellent at spin and people don't always understand what they are buying in to.