There are a lot more right now and in almost uncirculated condition than in recent years due to folks looking for the W - West Point quarters in boxes and the great American coin hunt done this spring. I have found 8 silver quarters dealers set loose in circulation due to the promotion.
I still see these Bicentennial quarters. It is a nice design and a relatively high relief reverse. In fact, some coinstar machines reject the clad Bicentennial quarters - IMO, due to the high relief. For that reason, some vending machine guys dislike them when dumping coins.