Visual Studio and other products have free versions now, so TechNet subscription is mostly outdated service. Visual Studio Express is the same great product that the full version of Visual Studio is, but is great for beginners. Visual Studio as a whole is a great product too. And, MSDN subscription is there too.
Combine that with subscription based Office and you have little reason to get TechNet.
I gotta say I'm impressed with Windows 8.1 preview. It is by far the best OS there is. I'm happy that the start button is back and that they've improved Start Screen. The performance upgrades are fantastic. Everything runs so smoothly.