content: There is a market for people that need to run console commands and other stuff on the road,  where text prediction isn't going to help.  It's a niche for sure but it does exist. That, and if you do a lot of text entry for instance write a lot of email, having a hardware keyboard can be arguably superior if you're used to it or are willing to take the time out to get used to it. It's not like anyone's forcing you to buy it. If there's a market for it then why not?