I agree that using
DVC points for a cruise is not the best way to stretch your points. If you are willing to go through the hassle of renting out points to pay for your cruise then that's definately the way to get the MOST value out of your points.
HOWEVER, in the case of jeanneg, you really have to ask yourself if it's worth it to do that. If you really look at how much your points COST you, assuming you bought in at $55/point (i don't know actual costs) and you pay around $3.90 for dues (which i think is high at OKW, again, I'm rounding liberally), those points actually COST you $4/point/year of usage. No discount in the world is going to beat that for the price of the cruise.
One example was something we were looking at... $2500 was the cash price for the cruise for 2 adults or nearly 400 points. At a cost of $4/point (not counting if you financed, or the opportunity cost and all of that stuff!), the price that you would've paid would be something like $1600. Because we bought in at a higher price and our membership is good for fewer years (42 instead of 50) for us the cost that we paid (in dollars/point/year + yearly dues) is more like $5.60/point which brings what the points cost us close to the price of the cruise.
In our case since those 400 points would be much better utilized by us at WDW (and we will use them for DVC accomodations) we decided to pay cash for the crusie (and MAY rent out some points to offset the price of the cruise, but maybe not).
If you are going to do a cruise instead of a WDW vacation then I say use your points and enjoy it. Don't feel bad, like people who are booking under these discount programs are getting a much better deal than you are... By being smart enough to buy into DVC when you did, you have already saved thousands (maybe tens?) over other people with all of those free park passes etc.
If it's worth it to you to rent out your points for $10/point and then pay cash for the cruise, that's an option too... but personally, if I'd bought into DVC 10 years ago I'd be much less likely to do that and more likely to just use and enjoy my points for something different, especially if it didn't mean forgoing a DVC vacation at some later date.
Lisa