Voted for

• Keep it powered up and sell votes for profit

Nowadays I have about only 370 Steem Power, and I already selling my vote.
But I also curate (upvote) (mostly) posts manually, and if I would have 100 000 Steem Power, then I would also curate (upvote) manually. Even comments.
Nowadays I rarely upvote comments, because nowadays my upvote is worth approximately/about/around $0.01 USD, which is less less than the payout threshold ($0.02 USD).
If I would have 100 000 Steem Power, then maybe I would even delegate some Steem Power for profit (or even some Steem Power for non-profit to help the community, and make Steem more valuable in the long term).
100 000 Steem Power is a lot.
If the most of us would get 100 000 Steem Power, and if they would act only in their best financial interest, then they would surely go for maximizing their curation (and/or any other) rewards either way.
Nowadays a 100% upvote with 100 000 Steem Power is worth $2.20.
Powering down 100 000 Steem Power would be foolish, and selling it for FIAT would be more foolish, because if you would have 100 000 Steem Power, then people would care (or would pretend to care) about your posts, but you certainly would get many upvotes and comments. Attention in general.
People would hope that they would get a good upvote from you.
Not to mention the fact that nowadays the price of Steem is low, so if you would sell it nowadays, then you would probably regret it in the future.
If you would sell it for any FIAT currency, then you would certainly regret it, because you would not get any better interest anywhere with any of the FIAT currencies.
If you act only in your best financial interest, then keeping (and using) it as Steem Power (in any way) to earn profit is the best option.