I bought some TUBE coins at 5 cents on Monday, today (Thursday) I check they are up to 8 cents. Last week they were 3 cents.
I might buy some tomorrow because I think an 8 cent coin going to 40 cents is more likely than steem going up 5x. This isn't financial advice though.
It was 40 cents on 04/24/2018
Bittube resources
https://coin.bit.tube/whitepaper.pdf