On a whim, I visited my local "estate cleanout" store to see if they had any new numismatics for sale. I went in expecting them to not have anything interesting. But I was wrong. I ended up purchasing a few items: 1926 Buffalo Nickel: 1936? Buffalo Nickel: 1944 Mercury Dime: 1952 Roosevelt Silver Dime: 1964 Washington Silver Quarter: I spent $8.10 for all 5 coins. Not sure if that's a good deal or not, but it seemed worth it at the time since I didn't have any buffalo nickels, mercury dimes, or silver dimes in my collection yet.
Thanks everyone. Makes my wallet feel better knowing I didn't overpay. I think the Mercury Dime is my favorite of the bunch.