You're confusing products to sell and products to buy :-)
If I underwrite an IPO, I make money no matter how the issue performs in the secondary market. And "underwriting" in this case is a joke: if the issue doesn't sell, the "underwriter" doesn't underwrite it. Period. The underwriting contract is (almost?) always signed AFTER the shares are allocated. Don't get me started on IPOs :-)
If I underwrite a mortgage and it defaults, I'm now a) out money and b) in the real estate market. BIG DIFFERENCE.
Are you just in a bad mood today, Doug?
/jordan