Prior to Covid and the reduction of benefits to on site stays vs off site, I would agree with you. But as the benefits to staying on site (earlier FP or Dining reservations, free parking, Magic Express Access, purchase delivery, ect) started to be removed the choice between on site/off site became less. We have always stayed at the Contemporary due to proximity and on site benefits. Our latest trip when we were bumped off the Contemporary due to the refurbishment rather than moving the reservation in time, we moved to the Marriot World Resort. Its a generalization but I would guess many individuals who are booking the more expensive deluxe rooms are employed at jobs which do not have the highest level of flexibility in off time. Taking that into account, along with children's school schedules, ect., the timing of vacation is going to be a primary concern, as long as on site benefits don't drastically outweigh off site stay.