As others have said you will most likely find that you can own DVC for the cost of a moderate.... Maybe slightly less.
If this is a simple dollar out lay per vacation then most likely you will be happy.
I have found break even on straight rack rate is between 3 and 5 years. and between 8 and 12 on renting DVC...
It is hard to compare apples to apple, however, a quick search for a random week in January between Coronado Springs v. Saratoga Springs and found it to be about 200 hundred dollar LESS for Saratoga, between renting points at SSR and published rate at the Coronado..... for the lowest level rooms.....
If you move up the preferred room at Coronado and a preferred studio at SSR your savings is closer to 1000 dollars for the week Renting vs. published room charge...
I think as an owner you would realize more of a savings....
It is true figures don't lie, however it is equally as true that Liars figure....
Since we are not comparing apples to apples, I can make either case where DVC is or is not going to save you money in the long run....
The big thing with DVC is you HAVE to use it to find value in it.
It is a commitment.
Are you going to use it every year..... As other have pointed out, once you get the AP you find more reasons to go,
and you can always play the bank borrow game to go every other year, however.....
The VALUE in DVC is really only found when you use it.
The next big thing, is that to get what you want, you really need to be ready to book vacations 11 months in advance....
Maybe 8 in some cases, but last minute trips, even a few months in advance...... are not as simple as booking a cash room. Can they be done.... maybe if you enjoy SSR, or OKW, and you're flexible on room type and location...
I will give you this example,
I purchase 200 points at RIV at $180 per point.
I was able to get an extra years worth of points for free.... Value $20 per point on the rental market.....(opposite of magic beginnings in my book)
My purchase price was 36,000 plus fee's less something else......
I used my free points with my first years worth of point for a 8 night two bedroom stay..... the cash price for that room would have been $17,500. I have 50 points left over that I used for another trip....
My first year I was able to cover half of my cost more than half of my up front cost....
In two more years I will have more than broken even ....
Yes, I have dues in there..... so that why I say after about 5 years my DVC has more than broken even.....
If you can do your math like I do and feel comfortable with it..... then DVC is the option for you....
If you think your money is better off in some index fund..... I think you may come to a different conclusion.....
No real wrong answer here, you just have to pick what is right for you