> Worst of all, these products exist in a marketplace where cynicism reigns: "Why did you build that? We already have three hundred of those. Quit reinventing the wheel!"

I've been sitting on a bit of rhetoric in case that comes up, though I've been blessed not to need it. Regardless, let me share the rhetoric -- just in case someone finds use for it:

"Put bicycle wheels on a cement truck. Put airplane wheels on a skateboard. Put train wheels on a wheelbarrow. The metaphor about reinventing the wheel doesn't go very far -- because the wheel has been reinvented many times, and thank god for that. I like having trains and planes and bicycles and trucks and skateboards and wheelbarrows. The world would be poorer if they all used the same wheel."