Mine too on most all the collectibles I've managed not to throw away. I have over 100 coffee cups, 50 from each state. The rest friends bring back from their vacation trip.
The state quarters in particular I was referring to was the official collection. I have that 2 binder set when it was first issued. That's when I read about the value of the coins in circulation. Another Hive member I responded to yesterday had collected the quarters also.
I started off with the quarters I'd get as change from retailers. I had a small box full of those. Then I heard about the official set, so I gathered up all my loose quarters, chose the ones that didn't have many scratch marks, and made a complete set of those. The rest I redeemed.