Two years later, I found this thread in a search and was compelled to "re-animate" it like some corpse in a George Romero movie. But it asks the same question I've been asking again.
Of course -- we're all looking for price breaks when we're not spending money on software for business or commercial use. This is because we're not making money with a home-server and software used exclusively within the home and for the home.
So -- here we are. I have a WHS-2011 home server configuration on a Q6600 CPU, a Striker Extreme 680i motherboard, and some other parts that are much more current than those. The motherboard had been in storage and probably only has between 3 and 4 years on the odometer. The CPU was a "pull" from an OEM system, and I picked it up from an established reseller for comparative chump-change given the original price of the Q6600 when first released.
The server isn't "letting me down" in some way, but I plan on turning over hardware and OSes that are becoming dated or may lose support. So for more than a year, I've had a replacement on the back burner. And I think I found the Windows Server 2012 R2 Essentials "Academic" on Amazon more than a year ago for maybe $280 -- certainly a saving over the regular Essentials box. And at that time, I had read forum discussions that would lead to an easy conclusion that academic pricing did not come with academic "enforcement." Pretty much, that's what I see in the older posts on this thread.
Soon, I will install and set up the server to EVENTUALLY replace WHS. I might have just chosen to buy the full-blown Server 2016 Essentials, and the outlay would be reasonable for a non-academic license despite WHS-2011 having cost me only $50 when I purchased it.
But 2012 R2 will do just fine. If I later replace it with 2016, I'll have plenty of time to save the additional change.
I just hope I don't have any regrets or drawbacks over this. I was once entitled to purchase academic licenses that were enforced or otherwise required to produce a school-ID photocopy. I'm not looking for an entitlement, but just a good price. People could argue "You don't need a server" or "buy or build yourself a NAS with a built-in OS function." What are we going to do? Stream movies and music throughout the house; back up workstations daily; store important files.