If one has to go for post graduation, MBA from a Tier1 coll is the best choice, I totally agree with koolleo that it should make up for the earnings foregone and the experience, but you should also consider the college experience, money wil come and go college life wil never return.
If theres anything i miss in life its the college time that my law, b.com and bca students enjoyed..All the hard work wil pay crap is just justification from those who have no choice but to defend it..
Some wil come here and argue against it, but like i said they have no choice but to defend it, and have been steriotyped into believing in it..Also MBA lends you the dynamism that very few students in CA have..the knowledge of a CA and the dynamism combined theres no looking back..
:-)