Friends of ours are going to Disney in October. They were planing on going for three nights (Thu - Sat) and booking two studios at OKW (their home resort) with DVC points. When they called to book they were told there were not two studios available for those days but there was a one bedroom for the Fri and Sat and would be put on a waiting list for Thu night.
I went online to the regular Disney site and tried to book two studios for those same nights and I could paying cash. I could even get 2 studios at BLT for those days as well. Does Disney hold back rooms for cash paying customers at the DVC resorts and give the cash paying customers priority over DVC members?