I do agree but still no one can state that absolutely. Things fall out of favor and 20 years is a long time. Maybe Disney sells off the parks and the new operator mismanages. Maybe Disney mismanages. Maybe this pandemic was just a sign of more to come. Maybe......
There are a lot of companies that were HUGE when I was young that are no more.
Plus straightline isn't really great. Spending less now and in the near future costs can significantly add to what you have down the line. BWV resale is not the same cost as RIV direct, the dues are less and the room charts significantly less.
It isn't that difficult to book at standard 1BR so lets say you want to go in a moderately high point time - July. You could purchase a 218 point contract (200 will get you there for 11 years before a break)to book a standard view 1BR. It's not a stretch to purchase BWV at $140/pt so $30,520 up front but lets even go with the exact requirement of 218 points - $30,520. $1703 in dues for 2021.
RIV standard view 1BR for the same time requires 300 points.
Riviera costs more points -- because it is a more expensive room.
That currently is $180/pt or in Aug will go up to $185/pt. 300* 180 = $54,000. $2,515 in dues for 2021. So, take that $23,480 in savings for BWV purchase plus the $812 dues savings, invest it AND walk to the park from your room that required only 2/3's the points. Keep contributing the dues savings annual but I'll lessen it to the amount it would be if the dues were identical so around $687/year that also will go into the investment.
Even at a modest 4% return but following those parameters you'll have $72,000. You might consider that the replacement for selling something in 2042 which on 218 points would be the equivalent of $330/pt. How does that sound to have left in 20 years?
Honestly... That's a bit silly. If you don't buy either, and only pay cash for BWV, then you can have $500,000 in 20 years!
But the key, to all things -- You get what you pay for. BWV is cheaper than Riviera -- Because to the market as a whole, Riviera is better than BWV -- Bigger nicer rooms, nicer pools, nicer resort. Now, it's subjective -- Not everyone will agree. So people who prefer BWV can get a GREAT deal -- They can get a resort that they subjectively believe that is nicer, and it can be cheaper!!
People who believe Riviera is nicer -- To them, it is worth paying more for Riviera.
And it's not really more, when you account for the difference in years.
Even more critically -- BWV is a complete rip-off for 1 bedrooms.
Let's use your math: $140 per point for resale, plus just under $8 per point in dues.
20 years left in BWV -- So that's paying $15 per point, per year.
You can typically rent points for $16-$18. And then you don't have to put down a big down payment.
So if I just rented points for $16-$18... and put that $30,000 into savings, instead of a buying points: The compounded interest, with annual withdrawals.. would allow that $30,000 investment to last 20 years, at a 4% return.
If I can rent points for $16-$17 -- Then that becomes CHEAPER than buying BWV for 1 bedrooms.
If I can rent points for $18-$19 per point, then it's about break even.
If I can rent points for about $20-$21 per point, then I get miniscule savings by purchasing BWV on re-sale.
If I can get a 5% return on that $30,000 -- Then it's almost impossible to save any money by purchasing DVC.
Now, it totally depends on how you use the points. But buying BWV re-sale points for the purposes of renting a 1 bedroom, is 1 of the worst possible rip-offs.