market price is not dependant on the 19mill coins in circulation(hoarded or lost)
its dependant on the small amount of those 19mill that are actually traded.

yep market price only changes when orders are actually filled by actually having coin on the market.

the hoarders refusing to sell are not affecting the price. because they are not selling.. they are hoarding.

buyers and sellers affect the price.

its not hoarders philosophy you should interrogate. its the mindset of the day traders. and what 'value' they see as their purchase/sell limits.

once you grasp this concept then you can move one step closer to getting your answer answered about how markets and price valuations work.

so take some time to understand its the markets that are involved in the market price. and users in the market that decide on a value window by their collective emotions and limits that set the window of value for the price to speculate inbetween