They can also send cabins and bungalows to cash when Members use points to cruise or to utilize certain other options in the Collections. There are LOTS of points used in that manner. (Just my opinion, but I think there are many more villas sent to DRC due to Members' choices than are sent there as breakage). If DVC is sending bungalows & cabins to DRC to pay for Members choices, it's a big benefit to us, assuming that there are cash customers eager to book them. It provides $$ to pay for Members' choices and sucks up points that otherwise would probably go to book studios or other villas that Members want. Win-win!
A Bungalow requires 227 points during the holidays per night, a studio lake view 42 points.
Rack rate for a bungalow for that night is $4832, for a studio is $1170.
So not only renting 5 studios is easier, they also give more money and leave a few spare points. It's more convenient for Disney to use the points they get from exchanges to book studios and rent the bungalows using breakage inventory.