I was also curious about vLane.com. I get a lot of students in my classes where purchasing VS.NET along with all the server software just gets to be astronomical cost wise for them, so I've been pointing them to vLane.
Anyways, I did a little search on Google Groups and ran across this from Andy Boyd, Program Manager for MSDN Subscription Downloads:
No, they get around it by playing games with the details of our licensing
agreement. I can't say more on this right now, except to note that this is
something that we're currently looking into [rest snipped]
Hmmmm. They look legit, for now. I'm not sure what this will mean for people who have purchased from them in the past, and whether or not it would be wise to purchase from them in the present. If you are curious, the company offering it for $895 on eBay is also vLane...