I am not sure why everyone thinks this is so awful. It is not cheap, but it does appear to be a non-trivial discount over booking the
Disneyland hotel for cash. I won't be buying it, because I don't think there's any particular reason to stay in a Disney-owned hotel at Disneyland. But, Disneyland's DVC offering is a niche within a niche---it is for the folks for whom only Disney will do, no matter what. There are enough of those folks West of the Mississippi with plenty of discretionary income for this to do just fine.
The other observation I would make: Unlike in Florida, Disney can't just keep stamping these things out every two or three years. They have
very limited space in Anaheim. I think they would much rather sell a little more slowly at a higher margin than to sell fast and leave money on the table.