A good UI can be text, graphic, voice, etc.

I enjoy the usability and self perceived speed of not having to leave the console or reach the mouse to move a pointer when a cople of key presees is enough.

It's a matter of choice, I know, but I also think there is a genuine case for text over graphics. I see it everyday on businesses that keep old cobol tpvs at the cash, the speed at which the clercks check inventories or perform other crm activities is unmatched to mouse or touch interfaces