You are missing that SBD are worth more per coin currently then Steem.

SBD = $3.90
Steem = $3.47

Now those prices are averages among different exchanges, but close enough for this.

4.9 Steem = $17
4.5 SBD = $17.55

I won't say don't power down, but just make sure you are doing it for the right reasons. Grow your account and keep doing so. Long term you will be much better off IMO.