I don't know of a thread about that but I have my own way of making that determination. It has come up when I've looked at HHI resorts in low demand season.
Since $.70/point is the going rate to "rent" points from other owners I use that for my calculations.
For example, Grande Ocean in January is 600 points for 6 nights = $420. On Marriott.com it's almost sold out at $191/night, $1274 total. DC points are the way to go.
Do you own points or do you get your points by converting an enrolled week into points?