We're still giving out Purple Heart medals made for the expected casualties that we would have suffered in an invasion of Japan. Think about that for a moment, the sheer number of killed and wounded we've suffered in Korea, Vietnam, Desert Storm, Mogadishu, Iraq, Afghanistan, and all the other battles along we way and with all those casualties, we've still not exceeded the number of casualties from one expected WW2 campaign.
The WWI Purple Hearts ran out during the Vietnam War. Now our soldiers get the new made, really crappy medals. The WWII medals were very high quality.