Keep in mind there is a tremendous lead time in publishing something like VM, so up to date information is probably never possible. For example, any pictures of the BCV's probably would have been several months old, and the resort may actually open before some members get a chance to even read their copy of VM.
As to cost, I would bet for sure it comes out of our dues. I don't see any advantage to the sales department picking up the tab. However the cost may not be that much. I have a relative who has a small internet business. They just printed 10,000 catalogs of their merchandise. I would judge the finished product was similar in size and feel to VM. Their cost was about $1.00 per copy, plus postage.
I would think Disney's cost would't be much different, so for 4-issues maybe it's $5.00 or so, per member per year for the VM, including postage. Still high considering what you can get in a monthly magazine subscription, for example for $15, but then most magazines have up to millions of subscribers, not just 60,000 or so.
All MHO