Prices

A couple of my coworkers have this sign above their desks.

Answer Price Sheet
Answers…………. $0.50 each
Sarcastic answers…………. $0.55 each
Sarcastic answers requiring thought………….$0.75 each
Sarcastic answers requiring a lot of thought………….$1.00 each
Correct Answers………….$2.00 each
Stupid looks are free

I need to get one of those signs.