You are a FSBO if -
You like to save money. Lots of money
You can do a better job selling your home than anyone else
You feel realtor commissions are too high
You want to have more control of the process
You want up to date communications
You feel the agent usually put his/her interests above yours
You can see that the Internet has diminished the need for agents
You want to sell your home faster and keep more of your equity