Fishing lures are not indestructible. Hooks bend and rust, split rings break and spinnerbait blades lose their finish. Instead of tossing a broken lure in the trash, I like to keep terminal tackle and lure parts handy to fix things.
For the most part, I try to keep a variety of treble hooks, spinnerbait blades and skirts and split rings in my tackle box at all times. This allows me to “doctor” lures when something breaks. In the long run, this practice has saved some money.
There also are a number of crankbaits I own that just out fish others. I can't tell you why this is, but given how much they get used, I tend to change out the split rings and treble hooks every once in a while. It can be a bit time consuming, but at the end of the day, it will help you put a little more gas in the boat and keep those clutch lures running true.