Are these certifications actually valuable?
Never worked with one of these master level guys. But my experience with MS certified people is as follows: you get them to design something, paying a quite good sum in the process. The end result is a design that usually requires the latest versions of the greatest and more expensive MS technology, even if some components could be replaced by, say, open source pieces. But no, you have to go to the full stack if you want to have the perfect and trouble free setup.
Said design also has the interesting property of ignoring all technical infrastructure already in place, and never quite ends up interacting well with all the gear you already have in place. Of course, you'll never find out this until you actually try to deploy these technologies at large, and the answer will always be "works for me, but that's because I have the latest versions of everything" When you reject the idea of doing that just for the sake of the new component working, they'll start digging MSDN for patches, workarounds, and registry hacks, which they'll apply meticulously.
At some point in this process, something will break and they will not be able to repair it. This is the point where your certified MS person will give up and tell you to reinstall everything again. Just in case, because these things are so complex that no one really can understand what they have done.
After a while, when your project is already delayed and over budget, you'll have to accept reality and live with this sporadic login prompt appearing from nowhere, or with the need to reboot some server on weekends because what is running there leaks memory or resources, crashing after a while. Or with the occasional show stopper timeout. Or...
Wonder if these top level certifications are really teaching more than "use the latest versions of MS everything" and "how to configure SP to use forest domain delegation" Perhaps they are going a bit beyond that and explaining WHY they'd want to do those things in the first place.
Still not enough. Because the truly valuable professional is able to tell you also why YOU would want to do these things in YOUR context. And more importantly, WHY YOU NOT. Which is against the spirit of the training, after all you train these people to sell more MS software, not to advise a customer when it should not buy it.
So I guess the open question is... has one of these 200 top gun guys ever advised against using an MS product?