it sure is good to bid them up and higher the better. you must keep the value UP . many people like my self have thousands invested in these and i for one will not let a high dollar strike sell for joke of a price . you get what you pay for cheap prices = cheap strikes=CHEAP BUYERS! my 2cent worth . main rule in collecting only buy what you can afford not all collectors have a FAT bankroll . only a few of us do$$$$$