Windows 8 - missing the old Start menu?

I discovered by accident that if you right click at the bottom left corner of the desktop in Windows 8, where the new Start icon pops up, you get a contect menu that's genuinely useful - it has links to the control panel, run command, commans prompt and more.

 

WWhy on earth didn't Microsoft make it more obvious by putting some sort of button on the taskbar? We aren't all psychic - especially those who are infrequent PC users and don't want to read the instruction manual, if there was one, which there isn't.