Being at a Major is just different. I'd say any tournament really. Pick a hole and watch groups go through, follow your favorites. Hang out at the range and see how these guys work up close. Maybe get to meet a few.
As far as majors I have been to 2 PGA's , Phil's win at Baltusrol and Jimmy Walker's win at Baltusrol .... and 1 US Open. Brooks win at Shinnecock.