Hello
I agree with alot of DISers are responding.... I am a renter

, I do not goto WDW often enough
But I found this great review of DVC membership and costs, something similar might be on this site but I did not see it.
For more of where this came from go to
http://www.mousesavers.com/dvc.html#dvc
Best Candidates for DVC Membership
DVC membership might make sense if you meet most or all of these criteria:
You have the cash in hand to pay all of the upfront costs of membership without borrowing.
The cost of dues does not appear to present a financial hardship based on your current expectations.
You vacation at Walt Disney World frequently: ideally at least once every two years.
You plan to continue staying at Disney World far enough into the future to make the membership at least break even.
You prefer to stay in Deluxe or DVC accommodations and/or you stay a long time (10 days or more per year).
You are able to plan your vacations well in advance -- ideally 7 to 11 months out.
Resale or Direct From Disney?
Only Saratoga Springs Resort is still available for immediate purchase directly through Disney. You can ask Disney to put you on a waiting list to purchase the other resorts, though they are supposedly "sold out." If Disney exercises its "right of first refusal" on a resale, it will often turn around and sell the contract at current full market rates to the next person on the waiting list.
You can also purchase any of the resorts from current owners who want to get rid of their memberships, through the resale market. If your offer is too low, Disney will exercise its "right of first refusal" and buy it out from under you -- which is nice for the seller, but a waste of the buyer's time. Be sure to research before making your offer, so that you have a reasonable expectation of actually getting the contract.
According to my calculations, the long-term value of a DVC membership is very similar whether you buy a resale or direct from Disney (unless Disney is currently offering a significant incentive, which may affect those results slightly). For that reason I think the decision to go with a resale vs. buying from Disney should be based primarily on which resort you want, how much you are willing to pay up front (which will usually be a bit less with a resale) and how long a contract you want (through 2042 or through 2054).
Once your purchase is completed, there is zero difference between buying directly from Disney and buying on the resale market. You will be treated exactly the same either way, and receive the same benefits and discounts.
Several Florida real estate companies specialize in DVC resales -- try a Google search to find them.
Conclusion
Buying a DVC membership is a rational, financially viable option for some people: namely people with the cost of the initial purchase already sitting in the bank, who plan to stay in the higher-end accommodations at Walt Disney World on a regular basis.
A DVC purchase is a way of committing to an annual Disney vacation with family and friends. For some people, that may outweigh any financial considerations. Only you can determine if DVC membership makes sense for your situation.
If you only visit Disney World occasionally, you may find that renting DVC points from an owner is actually a better deal than buying a DVC membership. See below for information on how to rent points.