Am I doing it wrong by keeping everything in Steem power?

Not at all! Depends entirely on your particular life situation! Me, I need cash, cash and more cash and I need it last year sooooo ... yeah. Also, I'm in Nigeria. Even $15 dollars (which is about what I'll be getting unless something magical happens in the next 24 hours) changed into naira is a ... useful sum of money.

Also, I really want to actually post about the cashing-out process from a first-hand perspective for other people who are waiting to join because they think Steemit is a scam ¯_(ツ)_/¯

But yeah, if I were more affluent, I'd be 100% Steem Power all the way. As is, I did go 100% on my very first post on purpose and a few others by accident. The rest, I'll be sticking with 50/50 for the foreseeable future.