The saying used to be: "A stitch in time saves nine."
Many items can be repaired and are good as new for a long time to come.
Repairing can take some skill, and a supply of tools and materials to repair things with.
A workshop and workbench definitely have their uses.
Some repairs and maintenance can be quite technical. Consider looking on Google for 'how to' answers for anything from servicing your car to repairing your computer or stopping the swimming pool going green.