Megan McArdle:

[T]he entire private financial industry bailout is ultimately expected to cost less than $30 billion; of the $99 billion that the CBO expects we will ultimately lose on TARP, half of the loss comes not from helping the "banksters", but from the Obama administration's decision to bail out the automakers...

By contrast, the nationalization of [Fannie Mae and Freddy Mac] is expected to cost the Federal government $64 billion between 2011 and 2020, on top of the $110 billion we've already spent.