Technet has high subscription fees & annual renewal fees. That's cost in my book. I read where MicroSoft is killing Technet to enhance profits. So you are basically paying for the releases, Correct? How does the licensing work when they are evaluation copies. Don't you have a evaluation time frame?
I've been using Linux for the last 12 years. So using that time frame as a comparison if you have been a member of Technet for 12 years you have paid over $2,000 for your 2 copies of WinXP and Win7. I've never had a problem getting a free solution to a problem. If I'm unsatisfied with the distro I just download something different there are hundreds available. I started with Redhat(Fedora) moved to openSuse then tried versions of Mandriva (mandrake), Zorin, PCLinuxOS (which I liked) & finally found Mint. I've pretty much stayed with Mint since 2008.
I found that the Dell Vista laptop I bought in 2008 and soon trashed the operating system couldn't be upgraded, no drivers for Win7, I would've used a 4 function calculator rather than go back to Vista. (total garbage). I upgraded my laptop in Nov '14 soon dumped Win7 after malware infected my whole system. which came through Facebook games. Installed Mint 17.1. My total costs other than the cost of the 2 laptops was ZILCH!!! I can pay my bills, play games, surf safely, do my taxes and file online for free & watch movies.