Too Late?

J. and I had another great idea about a children's book written for adults, a board book entitled Mommy and Daddy Used to Have Fun . I won't give away the content, in case we decide, against all odds, to follow up on.

I was really excited about the book, certain we could make a ton of money, until I read that yet again, someone had already beaten me to another great idea. I'm really pissed at Tom Robbins for writing B is for Beer, wondering if I will ever have a unique idea.

Is our book still worth persuing?