If you've never seen a PGA event live, I strongly recommend it. You have a lot of freedom as a spectator to wander around, follow any group of golfer's you want, or just find a spot (18th hole is popular) and watch everyone come through or finish.
As a golfer, its great to see these guys swing the club up close. You can often get within 6 feet of a player, the spectator crowds are spread out enough (18 holes, fairway's, tee boxes, greens, concession stands) that you can usually get a good view. You can get up close on the tee box pretty easily, or move down the fairway before they tee off and try to predict where it will land.
I followed Anthony Kim and Hunter Mahan most of the way through the course. Even though Kenny Perry had the lead, I was hoping Mahan (who's done very well on this course in the past) would mount a charge and we could have a dramatic finish. Also I wanted to see Kim play. Plus Perry and Goydos (his partner that day, and who was also in contention at the start of Sunday) have swings I'm not really trying to emulate. Perry has a funny way of taking the club back (from what I've heard its due to an injury earlier in his life) and Goydos has sort of a quick swing that I felt I couldn't learn much from.
I got to see Anthony Kim play some great shots from tough positions. Check out what he did on the 10th hole:
His tee shot went off to the right and land
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The 13th was a similar situation:
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Anyway, Perry ends up winning, Mahan tied for second, Kim tied for 11th. All in all a nice day.