If bitcoin's price dropped to $1, i think i will give it all to the community. Because $1 is really don't' have price for me, a huge down from -+$600 into $1. I hope it never happen.
You need to have at least 100BTC to do something with it then. $0.5, $5 or even $10 would help with nothing. Selling is a bad idea, because you would already loose hundreds of bucks... Now loosing a few more dollars wouldn't do much more damage. But I can't see BTC going that down because people would go and buy Bitcoins, so the price would be stable. If it would go to $1, everyone will buy and it will skyrocket back to $600.