Tim Sneath Senior Director, Microsoft Learning at Microsoft Corporation - responded why in a post in this link
https://connect.microsoft.com/SQLServer/feedback/details/799431/please-dont-get-rid-of-the-mcm-and-mca-programs
His email address is in there, I recommend everybody email him to change his mind, here is what I sent him:
Dear Tim Sneath,
I read your post in the connect forum about your decision to retire these master level Microsoft Certification programs. You mention there is a chance at a replacement program in the future, however it does not make sense to cancel these programs before that point. You recently removed the expensive training barrier from the test but have not given it time to see if more people will work to achieve this accomplishment. Additionally this makes Microsoft the only vendor that does not have any master level certifications in order for professionals to show their life long work, skills and abilities. The MCSA and MSCE of past and present still have tarnished records of being paper certificates in many circles. Why would I now try for my MCSE if there is no path beyond that point? It would make more sense for me to move to Cisco and work towards a CCIE in order to show my experience and skill level I have spent over a decade building.
Microsoft has a serious image problem for many reasons the last few years but this decision along with removing TechNet is like a knife in the back of all IT professionals. Even with the shift to more consumer type devices and the cloud, skilled IT professionals will still be needed for a considerable amount of time. I would urge you to reconsider this decision or announce a replacement program immediately. Show us that Microsoft cares about IT professionals, talk is cheap!
Sincerely,
Britt