I can see what you are saying, Dean. Something along the lines of Marriott Horizons... nice accommodations that appeal to middle income families, no in-room jacuzzi tubs, less elegant furnishings, higher density buildings, lower purchase cost than Marriott's traditional timeshares, somewhat reduced (delayed) tradeability to sister resorts.
It's been written that the timeshares in Hawaii aided that state's tourism industry during the recent year of reduced air travel. Timeshare owners are far more likely to return to their home resort during tough times than hotel visitors who may just switch to drive-to vacation destinations. Expanding
DVC's target market could be one way to address this for WDW.
Personally, I doubt we would be interested in buying in to DVC at a "moderate" home resort. However, I think the general market for that would be huge! I doubt the owners who would choose to buy a "moderate" DVC resort would overrun DVC with deluxe reservations - not enough points. DVC could also delay their non-home resort booking window until 4-5 months ahead of travel.
As for whether they'd have enough money to buy in at all... they certainly would. For bargain hunters, such an option would be worthwhile. Think of it. $6,750 ($90/pt x 75 pts), plus $225/yr in maint ($3 x 75pts) and receive a week in a 1BR or more in a moderate studio - better than All Stars or offsite hotels.
The one thing I'd do differently at such a resort would be to offer an economical family suite... a 1BR that sleeps 6 w/mini-kitchen, murphy bed and a divided bathroom w/double sinks - sort of a variation on the Wilderness Cabins. This would draw those families w/children of both genders or w/3+ children who would otherwise avoid DVC due to the high cost of 2BRs for every trip. It would compete effectively with Doubletree Suites and HIFS, bringing more offsite families onsite. Just a thought.