> some people do use SSH for their real work as well

Somehow all that 'real work' boils down to configuring servers. Most people don't configure servers 24/7 or even 8/5. They need to work with files of different formats and with different apps. Now tell me, how would you use SSH (not SSH tunneling, lol) to loot at some .jpegs to decide to what would be used in somewhere.