It is way cooler to catch fish on things that you have made yourself. I started tieing my own flies for trout fishing and then fly fishing for walleye, northern and other warm water species, when I was about 10 years old. I don’t tie pretty flies, just useful ones. One of my favorites, can you guess is the woolybugger. I also make many of my own jigs. Don’t know much about it accept, I melt the lead in my lead pot, pour it the mold with the hook, clean it up, paint it or dress it and go fishing.
There is really not a lot of money to be saved, nor is there a lot of money to be made. At least not on the small scale. It is just plain fun though to catch fish on your own creations.
I am going to try carving cranks out of wood next. Paint them up and pull them behind my home made handline rig that I haven’t built yet. When you have more time than money, it is just fun to do things yourself. For me it makes the experience much more meaningful.