How do you know what value satoshi expected bitcoins to be worth? He did once say something along the lines of he envisions either huge adoption with lots of people using it or none at all in the future. If the former is true then I'm sure he would have expected that bitcoin would be worth a hefty value in fiat terms, but I guess satoshi's speculation is something we'll likely never know unless he ever returns (or he did actually say somewhere how much he would expect bitcoin to be worth).