Free: Contests & Raffles.
Well, anyone ever seen snow? It's that stuff that falls in spring and fall. Even if we didn't see the guy, his presence should be all but impossible to hide once it snows. Can he levitate? leave just 2 prints in the snow then get on his hover craft? Even hibernating animals (of which there are no primates) are active and about in times with snow. Where's the tracks?
If bigfoot doesn't exist why is it illegal to kill one. Also if there is no bigfoot and people knew that then we would face more traffic in our hunting grounds, so maybe its best that people in general remain scared of it.