A fork in the road

Hello

I am 34 years old, Indian, Software engineer, graduated from the best Undergrad Engineering School in India, went to a reasonable US school for an MS in Computer Science and since then have been working in the US for a really large semiconductor company.

A few months back, I felt the need for a career change/boost and an MBA appeared to be a good way to do it. I wrote the GMAT and got a 760 score. So far so good..

Last week I checked out the expenses for an MBA program and also the expected earnings after graduation, and was shocked that the price of a "name brand" two year MBA degree has gone up to $150,000-190,000.

My current salary is ~$130,000 an year. If I go for a two year program, the opportunity cost and the price of the schooling itself will equal $400-450000.

The impression I got from looking at the starting salaries posted by schools like Wharton, MIT, HBS,... is
1. I Banker 150,000 + Bonus. (really large 5 figures, 6 figures??)
2. Product Marketing 130,000 + Bonus. (30K or so.)
3. Consulting 130,000 + Bonus. (50K?)
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Does it make sense for me to go for a full time, two year MBA program? I need to consider my age, and the opportunity cost, but I am unable to make up my mind..

Please help.. Someone?.. Anyone?..

Did I mention that I have 10 years of work experience?..