Because he's f**king FUNNY! That's why.
Now, this wasn't filmed last year because Bill Hader has moved on from being a not ready for prime time player to the big screen in 2013, so perhaps THIS isn't the sketch that got Zach nominated for best guest appearance, but man, this is just laugh out loud funny and a great lift for a gloomy Friday.
"What is a Roth IRA?"
Thanks for the laughs Zach and Bill.
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