I was counting all the server OSes too, and still haven't looked at Windows 8, only Windows 7, which had ~5 consumer versions in both 32/64, the K and N version

I was counting all the server OSes too, and still haven't looked at Windows 8, only Windows 7, which had ~5 consumer versions in both 32/64, the K and N versions, etc. I kind of like this because I get a few keys for each with MSDN from BizSpark, and thus never run out of licenses when I install new VMs.