Regularly servicing your bike is key to extending the lifespan of the bike and its components, keeping them running smoother for longer and reducing the amount of time they need replacing.
If you continue to ride a bike that’s been through a lot of wear and tear, the knock on effect is that it will damage more of the bike’s components, resulting in a more expensive repair bill. A good example of this is your chain.
If you change your chain before it wears out you probably won’t have to change your cassette and chain-rings however a heavily worn chain will put excessive wear on cassettes and chain-rings and they would almost certainly need to be changed at the same time. Therefore, regular service checks are not only beneficial for your own safety on the bike it’s going to save you money in the long run. A properly maintained bike will effectively be more enjoyable to ride.