See, I remember watching some BW micro back before SC2 even launched. I watched marines being manually rotated around a lurker. Three marines at once shifting their firing angle, firing, shifting, firing, and on until the lurker died.

Three marines and a turret broke a lurker siege that would have obliterated me when I was at my teenaged fastest. I knew then I was never going to play SC competitively, and even ladder would probably not be fun.

One release of SC2 and a broken keyboard later and I was proved prescient in that regard.