Additionally, it is important to keep in mind how many bad ideas become well-funded enterprises. Sometimes an idea is carried out just as an opportunity to arrive at a better idea.
Anyway, I've had plenty of cases where I take notice of my original idea, and weeks later with a more worked-out solution in my head, I look at the notes and realize that my original idea was indeed much better than what I had on my head.
“Let's get one thing clear right now, shall we? There is no Idea Dump, no Story Central, no Island of the Buried Bestsellers; good story ideas seem to come quite literally from nowhere, sailing at you right out of the empty sky: two previously unrelated ideas come together and make something new under the sun. Your job isn't to find these ideas but to recognize them when they show up.”