I have a little different approach to establishing the value per point. I think that $5 per point is too low. My calculation determines how much it costs me to use a point. Here is the way I figure it:
Step 1: Multiply the amount you paid for each point by the rate of return you could have gotten had you invested the money in a fixed income investment.
Step 2: Determine your yearly dues per point.
Step 3: Add the amounts from Step 1 & 2.
Example:
Step 1: Paid $75 per point for VWL $75 x 6% = $4.50
Step 2: Yearly dues at VWL = 3.63
Step 3: Total cost (value) per point = 8.13
This is only one way to make the calculation and it admittedly, doesn't take into consideration the number of years that you will own the property or how much you can resell it for.