Paying for social media is something the average person doesn't want to do because it's brings almost no value into their lives, especially for the price that most of them are asking for.

The price they are willing to pay, is not enough to make a decent profit. There is more important things pay for than paying for social media.

This is the reality, will nostr change this? yes it will, but slowly and not anytime soon, in the far future, so until then you will continue to bear the costs