You won’t be able to spam Scan if each of your “detectors” cost 550 minerals.
In fact, Raynor is probably the worst commander for that mutation. He’s terrible for Minesweeper because he has only Scan for detection (building and rebuilding Missile Turrets just to have detection is extremely slow), and terrible for SlimPickings because his MULEs become worthless.
So i think it’s pointless to say, but i’ll say it anyway: someone clearly trolled the poll again.