Yeah, but if you're a pro, the unpredictable half day or more you'll probably have to invest several times a year to keep your Hackintosh running through OS updates totally negates the upfront cost savings.

If, as claimed in the article, a high-end hackintosh can be $7000 cheaper than the equivalent apple hardware, that outweighs a lot of "half days" for a lot of professionals. How many professionals earn less than $7000 per month? I would guess many.