he spent 1000 bitcoins to buy a pizza in 2010.
If he did not spend and hold onto 1000 bitcoins, today he would've had 1000 bitcoins X $3000 per bitcoin = $3,000,000 USD.
simple math.
If this is true then people like those are sure hitting their head for eating pizza. Really if I had known about bitcoin earlier then I would have stashed it.