There in fact is a market at 1 satoshi. If you bought at 1 satoshi today and then sold at 1 satoshi a month from now you might triple your money if btc keeps going up. But for all practical purposes it could take you months to liquidate at the present rate of buy in. But if investors step up the buying or if ever a frenzy would hit a fortune could be made at this 1 satoshi market.