> I have so many options to host videos, least of which is just housing itself on my own damn server!
Peertube is precisely about hosting videos on your "own damn server". Except Peertube is designed in a way that fellow instance operators can seed your content, and that clients viewing a specific videos will also seed it. This means your server can now serve video to more remote places, and will be more resilient to view peaks (a very small VPS with limited bandwidth can handle hundreds of parallel views).
If you don't go the Peertube way, you are usually giving up on serving video to remote areas where you don't have good connectivity to, and crossing your fingers so that your videos don't become too popular. Or you end up building your own mirroring/CDN infrastructure like media.ccc.de and others do, but by then the costs and complexity are much higher than operating a Peertube instance.