The natural metal source of the world is getting lesser day by day. This is why it is advised to reuse the metal through a recycling process. You may find a number things that are useless but still occupies some space in your house or office. Recycling those things will give a source to make new things from those metals.
Bathroom faucets need to be replaced when they start dripping or there are constant water leakages. Sometimes, the faucet will be ready for use after replacing its washer, or covering sealing it.
You might not need to replace the entire faucet when it starts dripping. Just do a thorough check of the faucet using the right tools.