Well, since you are soliciting opinions:
I guess what I'm learning is that some members consider the intrinsic value to be of more importance (eg. family memories, convenience of not moving resorts on weekends), whereas others consider the extrinsic value (eg. financial value, renting points) to be more important. I'm not sure that's either a fair or valid distinction. People may be renting points in order to afford to have more family members participate in a cruise - that covers both intrinsic and extrinsic. The motivation to rent does not necessarily correlate with the method of point valuation.
That being said, I still take issue with members who automatically assign a $10 pp value to everyone's points. If I am not renting out points, then that $10 pp value is not relevant to my situation, With all due respect, that's not really accurate. It's like saying "I can sell my 100 shares of IBM stock for $50 / share, but until I sell them, their value is much less". If you can rent points for $10 pp, then it is extremely reasonable to value them at such a rate. Heck, you can value them at a buck a point or $100 pp, but the market seems to have settled on (approx) $10 pp, so using that value in any analyses is a valid approach.
Even as a banker, he said that there is no possible way to accurately assign a point value until after our membership is expired as we have no way of knowing how much maintenance fees will increase Woo, I wish I could borrow some money from his bank! Most other bankers and financial analysts can take a look at past trends in MF increases, room cash rates, inflation, etc. and come up with a reasonably accurate projection of value. But to use only the cost and not even attempt to estimate MF increases, is (IMHO) bizarrely conservative. Along those lines, no one know "exactly" when someone will die, but insurance companies and actuaries still seem to be able to make acceptable projections.
Basically, it seems to me that when paying cash for a cruise, or weekend stay, members are paying cash to save points for another use. Technically, isn't this paying twice for those same points (once to purchase, and a second time to pay cash in order not to lose these same points)? Well, we're really talking about renting the points, then using the cash to pay for the cruise. They purchased the points, then sold them, and used the proceeds for the cruise. Even your scenario, though, has no "double pay" - if they pay cash for the cruise, the points aren't even an issue, and they are still as available as they were before.
The whole reason I'm taking the time to respond in this manner is that someone else said, "The OP is not harmed by using the analysis proposed." I disagree; that's like saying that someone who keeps all their cash in a mattress instead of a guaranteed CD isn't harmed. By valuing points at cost (and a lowest.of.the.low cost, at that) they stand to lose a significant benefit of ownership, which will get worse over time. I'll gladly sign a contract now - with Tiger, or anyone - guaranteeing me that they'll rent me points at $10 point in 2030
People look to these boards to learn things, and sometimes the financial stuff is kind of deep. But the time value of money, projection of membership fees, and the market value of a point are valid topics. But Tiger, please know this - it is possible to be concerned about these financial topics, and discuss/debate them, and still have a true belief in the Magic, and the Pixie Dust, and the true joy of a Disney vacation and the memories - of families, of friends old and new - that are made.
Submitted in the spirit of knowledge.