The only reason satoshi hasn't been found is exactly because he/she/they haven't spent any of those bitcoins.
(Also, the slightest movement in those coins would likely cause a massive drop in the value of bitcoin, as rational people realized a huge cache of previously assumed out of play coins might start being sold and everyone using it as an investment rushed to exit ASAP to avoid beat that).
(Also, the slightest movement in those coins would likely cause a massive drop in the value of bitcoin, as rational people realized a huge cache of previously assumed out of play coins might start being sold and everyone using it as an investment rushed to exit ASAP to avoid beat that).