Thank you so much for all the opinions and insights.

I am primarily Oracle DBA (at my current job); and certified at both 10g and 11g. However, we do have a few MSSQL servers - 2000, 2008 to cater to the off the shelf softwares that cannot go on Oracle DB.

Having said that. I doubt I'll be going for MCITP; unless for some reason I find myself in the job market for MSSQL dba position. At my current shop, I have had 3+ years experience in MSSQL (more limited in my opinion compared to Oracle since we don't use much MSSQL) - hence it took me the past year of preparation to be confident enough to try the exam.

Anyway, I love Oracle's consistent certification path: OCA -> OCP -> OCM and if a new version comes out, I just have to take one "upgrade" examination to be certified with the latest version - essentially the differences between the older and newer versions.