I'm trying to find the best coin collection software for inventory and updated value of coins....

I've just heard on the radio that the new $50 gold coins will be selling for $800. Are these coins legal tender?.Why can't a person just go to a bank and get a $50 coin like one would get a roll of quarters? Back 30 years ago when silver dollars were more common, they may have been of value to collectors, but, at the grocery store, a silver dollar was worth no more than one dollar.