I paid $20 for my black short bed 301 last summer at a garage sale. It was an unusually good deal. I paid $15 for one in a thrift store -- the main drive gears were frozen, but the parts had value.
I have a friend who says that $100 is never a bad deal for a 301 in working order.
It does matter how badly you want one, how long you have been looking, and what the availability for them is in your area.
Dayle