Someone may be better at answering this question but I would assume it is because there are less points to spread the cost over since BWV and VWL are smaller DVC (they are attached to non DVC resorts)
There will be no special assessment at Vero from all of the hurricane damage. I received a letter from Disney just before Christmas, stating that the insurance paid off, and that there would be no need for the special assessment at Vero.
Buying trip insurance from Disney is not always a good value. You should go to www.mousesavers.com and do a search on trip insurance. There will be a link to a web site that allows you to put in your request and get a lot of quotes based upon what you are looking for.
None of the DVC resorts have dues higher than $5 per point except for the non-subsidized VB owners. Since these reservations have "paid for" using points, the $5 reimbursement does cover at least the "actual" cost to the member for the current year. I would agree though that this does not include any "value" for the purchase cost or mortgage interest paid on those points - but it certainly does reimburse the actual cost of the points.
Some have reported using other forms of insurance - perhaps they will chime in with their experiences.
I would think that the $5 does not even cover the cost of the points. Most DVC resorts have annual dues at least $4.25 per point. You will also need to amortize the cost of the origianl price since one year of the points are no longer available. SSR has the cheapest dues at $3.98. If you purchased 100 points at the current incentive rate of $83.30 and got points for 2005 then (83.30 x 100 points)/(49 years x 100 pts) = $1.70. You lost $1.70 of your origianl cost. Your cost of the current year points would be $1.70 + 3.98 = $5.68.
The question, really, is whether enough members would be willing to pay more for the insurance to have a higher value associated with insured points... I suspect the answer is no.