It would be easy to view Augusta in a similar light, but to be fair it's a limited field. Still, 48 of 85 (56.5%) of Masters tournaments have been won by players who won more than one, broken down as follows:
6: Nicklaus
5: Woods
4: Palmer
3: Mickelson, Faldo, Player, Snead, Demaret
2: B. Watson, T. Watson, Crenshaw, Langer, Olazabal, Ballesteros, Hogan, Nelson, H. Smith
48 wins divided by 17 multiple winners equals 2.8 wins per repeater, just ahead of Harbor Town. But again, a limited field.