Perhaps renting would make more sense than buying?
Renting gives you more flexibility:
Maybe but I personally don't think so.
For one thing if you rent you do not have control over your reservations, the owner of the points does.
We have rented a couple of times and gotten good deals but I have lived in fear that if we should have to cancel it would be a nightmare. For us and the owner.
Another factor is that rental prices are going up much faster than MFs.
Renting is better for people that are short term DVC fans (i.e. less than 5 years of visits).
I agree with this. Renting from DVC members is really much less expensive than getting a cash reservation from Disney. But if you know you are going to go back year after year I still think buying into DVC, especially through resale, is the least expensive option in the long run.
If you are an owner you can get a good discount on Annual Passes and get Tables in Wonderland and partake in various DVC discounts.
Our last trip was a month ago. Not counting the cost of the room (AKV value studio) our out of pocket costs were $560. That was the gas to get there and back, 1 night in a hotel on the way down, all our food and we did some shopping. Not bad for a 8 night trip. We had APs and TIW and did use the DVC discounts at several places.