IBM PC compatible systems had no serial console and it shows in abominations like some Intel RAID controllers that required mouse to get through their graphical UIs. Even if you used one of the special "UI-over-serial" cards that were used on some PC servers, lack of support meant that it was perfectly normal for some option from to expect bitmapped graphics and want to use it :(

With UEFI providing a basic UI framework that covers all that firmware needs (and which still allows for fancy looking UI if you connect to framebuffer) serial console is back in use :)

Serial port is awesome to me just because you can copy/paste...