8 Bit Computer Graphics Technique Almost Unknown on PC?

We take a look at Raster Interrupts and try to figure out why they weren't widely used on EGA and VGA cards on the PC.
We look at Ghosts and Goblins for the C64 and a technique it used called sprite multiplexing.
Images:
SCSI Terminator - Adamanios CC-By-SA 3.0
creativecommon...