There will be a lot of buyers and sellers if price goes up to $5.
Some will sell, many new investors will come seeing how Steem is growing in price and adoption.
Steems is cheap comparing to Etherium, for example and unlike Etherium, Steem does have high daily usage (currently about 900,000 transactions per day).
Steem can go 100x in the next 1-2 years.