Transitioning to Custom Metadata Types

[@dongzhiyang6550]

It would be much better if you could elaborate on the several use cases of custom meta data types. Stock Point , VAT, or other use cases as well. I bumped into this video because I am looking for answers on what custom metadata and custom metadata type are, and why do we need them? I got the answers by digging into the use cases here in this video and I understand now both purpose and definition of custom metadata and custom metadata type. Most online materials including the official salesforce help and trailhead start by definition and benefits of custom metadata. But without looking at an actual use case, those materials aren't of much help for people who are not familiar with the concept or the problem that they could face without custom metadata.