* Economic That banks with the 'deal power' of Goldman and Morgan would set themselves up to the scrutiny of the Fed (adopting a commercial bank) is just amazing. These banks made the money they made and had the salaries/bonuses to go with it because they had little regulation with respect to commercial banks.
* Power Jobs / Career Tracks I don't know what the bulk of MBA's will aspire to now -- or Hollywood for the matter. Investment banking was regarded as a golden standard for 'making it'. So no more, now that investment banking has gone down the toilet.
* Regulation / Legislation Ironic, but the Glass-Steagall Act which was enacted in 1933 after the great depression was precisely the OPPOSITE: To separate commercial banking from investment banking! REF: http://www.fdic.gov/regulations/laws/important/index.html (So it looks like the cycle has started once again)