This is from Richard Anderson:

"During the Delta Air Lines third-quarter earnings report on Thursday, CEO Richard Anderson reminded shareholders the 70s are long gone, announcing that the 16 remaining 747s in its fleet would be retired by 2017."

How much does it cost to upgrade a 747. After all the 747s were upgraded recently, now the news from ATL is they will be "retired". Did/Will DL recoup the cost by 2017?

Just wondering - I am not a finance person.