I didn't and have not regretted it. I have one Baldor product in my shop (buffer) and one Grizzly product (grinder). The Baldor motor gets very hot to the touch after prolonged use (10+ minutes). I have not had the problem with the Grizzly grinder. I'm not sure that means anything in terms of quality or longevity but it is a noticeable difference.I'd pay the extra money for the baldor, you're only buying it once.
I've had both products for a few years and neither has had any problems.