Yes DVC members can and do rent their points they don't need or can't use that year out for around $10 apoint.
These points can be used at BWV, BCV, VWL, or OKW and now the new SSR. (along with the very wonderful off property resorts of Vero Beach and Hiltin Head.)
Since you are interested in BWV I will give you some idea of how much it costs to stay there.
Magic season is most of Feb, March April (not easter week) June, July and Aug and Nov 134 a week for a studio (1,340 for the week) Points are more on the weekend it would cost 62 points less to skip Fri- Sat. The only other time it would cost more is Holiday (easter and Christmas week.) All other times it would cost less. There is standard view at BWV that is less points, but they can be difficult to get and normally people who own there book them 1st.
BW has one and 2 bedroom vaction homes and grand villas too. A one bedroom during magic season is 270 a week. Both studios and one bedrooms hold up to 4 people over the age of 3. Under 3 don't count. There is no extra charge for over 2 adults. 2 Bedrooms hold 8 people total (often they are a one bedroom and a studio put together, 350 points during magic.)
It cost DVC members about 5$ per point (when you add it all up and divide by 40, or at least it does for us. It tends to be differernt depending on when you buy.)
Warning, once you stay in DVC, you won't want to go anywhere else. :lol: