The nice thing about quarters is they are easy to dump and often easy to buy. Few banks will look at you odd if you come in with $500+ quarters to dump. However, you have to realize how many people come in contact with quarters on a daily basis. Most people in the vending machine industry know what the sound of silver is, or they do a quick rim check as they are dumping coins into their bag. Others will search quarters for the newest state quarters and end up keeping anything that is old or unusual. There is also very little variety when it comes with quarters, while other denominations (especially nickels) have lots of foreign and unusual coins the most interesting coin you find quarter hunting is a stray Canadian. In my results I've gotten about 1 silver quarter for every $1,500 I search. And unless you are really, really, really lucky and manage to get part of a collection, you won't get a Standing Liberty or Barber quarter. I wouldn't recommend quarters to anyone looking to get a lot of silver, stick to halves and dimes for that, but if you have picky banks which don't like you dumping halves or have problems with ordering halves in boxes, quarters are an alternative, much easier to rim search than dimes, and easier to dump than any other denomination but really, really low yield.
