Ok here is my estimates. 150 points at SSR. I didn't use the $101, quite frankly I haven't heard of anyone paying that. They usually have a promotion of some type. I'll use $94 pp a midpoint between the $87 referral price and the $101.
150 x $94 = $14,100 = $200 closing fee and you have $14,300.
Now taking that $14,300 investing it in the stock market at 8% you have $1144 to use each and every year.
Dues on those 150 points would be $621 give or take. Now $14,300 divided by 46 years of use gives you $310.87 per year cost of your points. Add those 2 together and you have $931.87 per year cost to the owner for those points. Keep in mind that will grow over time due to rising dues.
Now the investment would net you $1144 a year to use towards the week in a studio at
DVC. Magic week at SSR would be 123 points. Premiere week would be 163. Lets just say every year you get a studio for a week using the higher point weeks during premier on alternating years thus using your full allotment of points. I'll use the 123 x $10 pp renting and you have a cost of $1230 per year. Your saving would be $1230 - $1144 = $86 in the first year and reducing each year with the increasing dues. A case can be made that renting price would increase but we simply haven't seen much of that. Someone is always there renting for that $10.
$86 a year savings and at the end of the 46 years it is worthless? Not much of a "deal" where I'm sitting.
I'm sure holes can be poked in this as well. I used a simplistic example like the paper did.
I love DVC as much as the next guy but I never considered it a cost savings plan. I spend far more at WDW now than I did before DVC. Buy becuase you can afford it and you love WDW and DVC not because it "saves" you money.