I'm using a 10% discount rate to adjust for opportunity cost/risk. 4% I think is too low.
The idea is if I have $6K today, is VGF or BWV a better value. I think they're relatively comparable if you consider the time-value of money. And my whole analysis is in comparison to renting at $23/point with 4% inflation.
At a 10% discount rate (which is too high IMO, but assuming it) -- If you look at the rental board right now, the highest rental rates are $18-$19 for the high demand properties. So assuming a 10% opportunity cost after inflation and after taxes (so you're assuming you would get a 15-20% return on investment), and assuming an inflation rate of 3% per year, my spreadsheet shows a breakeven point of about $111 per point.
At $19 2023 rental rate, 10% discount rate (after taxes), you get a break even point at the end of 2041 in the amount of $111 per point.
At $22 rental rate, 10% discount, you get a break even of $140
At a 7% discount rate, and $19 rental rate -- also a break even close to $140
Point being, once you discount for opportunity cost, it's very hard to save money on 2042 contracts. Paying between $110 and $140 per point, it's iffy as to whether it will save any money. Over $140, and you're losing under most scenarios.
Bit off topic, but by this analysis -- Direct contract prices really don't break even until about 30-35 years in. (which actually makes sense... Disney wouldn't actually be selling
DVC if it was a loser for them. They are getting the benefit of the buyer's lost opportunity).