Burning Crusade
I spent a week waiting for my Burning Crusade beta key. Refreshing my email, checking the forums, that whole anticipatory loop you get into before something you want actually shows up. When it finally arrived, I should have been thrilled. Instead I went straight to eBay and listed it.
Tuition doesn’t wait. You get what you wanted and it turns out you can’t actually have it. The expansion looked incredible—the flying, the new zones, Blood Elves. Someone else got to play it instead of me.