But Poly, at 7-800$/night, is still closed, as is Jambo, which is huge and expensive. There's not enough demand at either price point.
True, but they have a much higher percentage of deluxes open than they have moderates, and a higher percentage of moderates than values.
Deluxe/Deluxe Villas: SSR, Contemporary, YC, Poly Villas, OKW, GF, Riviera, AKL Kidani, BCV, BWV, and both sets of villas at WL are open and accepting reservations (meaning not just the DVC section open)
Jambo, BWI, BC, Poly (main), and WL (main) are closed.
Moderates: CBR, CSR are open
POR, POFQ are closed
Value: Pop is open
ASMu, AS2, ASMo are closed.
AoA is allegedly opening at the start of November and is so far the only resort to reopen after July that wasn't blocked off for a sport of some kind (unlike CSR, GF etc.)
So Deluxe open rate is 12/17, or 71%. Higher if you separate Contemporary and BLT which are both open.
Moderate open rate is 2/4, or 50%. 60% if you count the cabins at FW, which are open.
Value is 20% now, soon to be 40% (kind of; price-wise AoA is closer to a moderate because they're suites, so the per-night rate is much higher than a value room unless you're in Little Mermaid which is only 1/4 of the resort).
No, there isn't enough demand to fill all the resorts - or to be worth opening all the resorts - at all price-points. But they have a much higher percentage of high-rate resorts open. This includes resorts that rely entirely on bus transportation - 5/7 Deluxe/Villas, 1/3 Moderates, 0/3 Value.