Please let me know if you think I forgot to mention something here.

Your Steem Power earns interest. It varies, but is currently at about 1.9% APR:

https://steemit.com/steemit/@preparedwombat/how-much-interest-does-your-steem-power-earn-i-finally-figure-it-out

Granted, that doesn’t keep up with Steem’s inflation rate, but increasing market cap will more than compensate. Anyway, 1.9% is more than any bank in America is paying on fiat right now. 😂