At 100$/STEEM I would probably make an amazingly good income just by posting my photos on Steem.
When it was at its highest in the end of December 2017, I counted that by writing 5 posts per day I could in theory make 3000$ a week. So if it were at a steady 100, I'd probably make enough to not care if it were to drop a bit. ;D
Also, I'm not sure, but I guess SBD would also need to gain some. Last time the rewards were huge mainly because SBD was high too.
I remember the all time high. I had zero steem then haha. My first week. I was so confused by all the payouts.
That' would be a dream - not to worry about money and just dive deep into taking photos.