I still find them occasionally in my pocket change & toss them into a small box, with other potentially collectibles. At least they will never be less than face value, but may not buy as much as they used to back in 1976.
Found this at Wiki.answers - Most BC <Bicentennial> coins are double to triple the spending worth in average conditions. Good luck getting triple... The golden rule of collecting: "No matter the worth of an item you will only get what someone is will to pay for it."
"We do not inherit the Earth from our ancestors,
we borrow it from our children."