So I have to put in my thoughts about where Microsoft is taking the Surface...
Basically, they're sodding off OEMs for not getting with it.
You see, when they announced the Surface tablets initially, I remember quite distinctly how they said it was going to be limited (in sales and distribution) to the physical and online Microsoft Stores. I don't know if they were selling them elsewhere other than the US, but I think it was just a few countries. They did that so they weren't competing against their clients, and providing a model for OEMs to use that isn't the ipad and is the prime definition of the Windows 8 tablet PC.
Fast forward a few months, Microsoft claims that they're somewhat disappointed with their OEM partners for not releasing enough touch enabled PCs, let along tablet PCs given the fact they already knew that Windows 8 was to be touch designed since basically /build 2011. After Windows 8's launch and at the point in time, there simply weren't enough touch PCs out there, they're mostly Windows 7 modded PCs for Windows 8, basically a better touch pad, a new Start key and a new Windows sticker. They're not selling as well for obvious reasons, Windows 8 wants to be touched and fondled, the PCs aren't there YET. Some OEMs like Dell and Samsung are iffy about Windows 8. Other OEMs that have failed at building android tablets can't use their current hardware for Windows 8 RT due to the higher standards, which Blue will reduce. Microsoft feels OEMs are too slow at achieving their vision of the tablet PC and Windows, so they're going on their highway. Which is probably another reason for the Surface to begin with.
How I remember it went, the distribution of the Surface tablets was just through Microsoft Stores. Then it was amazon.com, and then later it was announced in December that best buy and Staples were to start carrying the RT tablets. That opened up distribution, though RT supply seems to have been short. Then later in January, the Pro comes out to best buy, staples, I think Costco should soon, and somewhere else. Problem again was that supply was enough in physical stores to literally count with one hand. Too little supply, larger distribution. It seems now it's settled out some, but now they've already announced the RT and Pro tablets to be sold in Russia, China, Brazil? All sorts of countries now. That wasn't even close to the original plan, it was supposed to be that OEMs were to copy the Surface, like Nokia is rumored to be doing, and not the ipad, like Samsung and Vizio and several other OEMs are doing. It was supposed to be that there should had been several Pro tablets out there by Windows 8's launch (Surface was announced in Juneish, launched in October and January, enough time to get SOMETHING like a Surface of such). But that didn't happen. Lenovo has said that touch PCs are selling more on Windows 8 than nontouch. They say it's a high demand product, touch PCs that is. There aren't enough touch panels to meet the Windows 8 requirements (10 point multitouch in several sizes and resolutions, unlike one or two sizes for android) and consumer demand. Honestly, I think it's ridiculous that OEMs, KNOWING that Windows 8 was to be the way of Windows and touch computing, didn't get a lot of those touch PCs at launch...
But anyways, since that didn't happen, Microsoft seems to be taking the route of, "If you bloody motherlovers aren't getting your poop in a group about this, then we don't care if we become a main PC vendor for Windows and push everyone out. That's your problem, not ours. If you don't like it, deal with it or get out."
The Surface brand for sure isn't a fad or an experiment, it's a long haul change of PCs and Windows. Microsoft has even said the Surface will be expanded on, and is developing them further.