My dad loves to tell a story about a Q&A session with Norm Abram of PBS [Edit: This Old House, New Yankee Workshop] fame, which your answer reminds me of. Why does Norm own an entire drawer full of routers?
Well, he used to ask himself the same question. All these companies kept giving him free tools as a promotion. Especially routers. He had dozens of them. WTF do I need all these routers for?
It occurred to him that if at the start of a project you put a bit into a router and don't touch it until the end of the project, all of your routed edges will match exactly. Even if you screw up and have to redo a piece. So he kept enough routers to do that. He still gets teased about it by his coworkers though.
Well, he used to ask himself the same question. All these companies kept giving him free tools as a promotion. Especially routers. He had dozens of them. WTF do I need all these routers for?
It occurred to him that if at the start of a project you put a bit into a router and don't touch it until the end of the project, all of your routed edges will match exactly. Even if you screw up and have to redo a piece. So he kept enough routers to do that. He still gets teased about it by his coworkers though.