I would rather buy an eBook with my liquid Steem, than to power it up. Yes, nowadays I am so disappointed in the Steem blockchain.
But I cannot even afford the eBook with my current liquid Steem due to the low price of Steem. The eBook would cost $5.07 USD. I currently (2020.02.28, 22:00 CET) have 20.052 Steem. 1 Steem is currently worth 0.166864 USD. 20.052 Steem is currently worth only $3.34 USD.
But someone should still build a web store for eBooks on the Steem blockchain.