I knew this thread would exist today, I almost posted a similar one last night. After much thinking and debating,let me play devil's advocate:
Merion is one of my very favorite courses, but I don't think you can compare it to Lytham when it comes to testing the best in the world. The courses are just too different in design. Lytham, although not that long in overall length was a good test, (even with mild greens) due to firm fairways, very severe fairway bunkering, and very high rough. It seemed to play longer than its yardage due to the many irons hit from the tees to avoid the bunkers/rough. It is a true linksland test, even without the usual high winds.
Merion, on the other hand, is even shorter than Lytham, and its defenses would have to be set up to the extreme.(it is a given that you can make the greens lightning fast and hard, and grow the roughs to unspeakable lengths, this would also make the local muni difficult). Merion can be set up extremely firm and fast with mild rough, as it was at this years Hugh Wilson, or it could be set up firm and fast with very severe rough. The one drawback to the "very" firm setup is that Merion doesn't allow for the ground game on the approach shots as well as the links type courses. There are a few holes that allow an approach to land short and run on(#'s 2,5,6,14,17,18), and there are many holes where the ball must be carried to the green/putting surface(#'s: 1,3,4,7,8,9,10,11,12,13,15,16). If you simply breakdown each hole you can see my point. Also, in comparison, to test the best, I don't think you could get away with setting the green speeds at Merion similar to Lytham(too many short approaches at Merion).
Wedge Fest?
The pros would not have to hit drivers off the tees to be hitting wedges into the greens. The following are all holes that could be a wedge approach, while still hitting an iron of the tee: #'s 1,2,4,7,8,10,11,15, you could also add the par 3 13th. Even setting the logistical problems aside, I am afraid that with the quality of todays tour players and the technology being what it is today, Merion has seen its last open.
Please don't get me wrong, I would love to see the very best tackle Merion, no matter the relation to Par, but I can see the point of the USGA from a yardgage perspective, and their fear of a shorter course. Forget the USGA $$$'s, that is another discussion.
Anyway...
I can't wait to see what transpires at the 2005 US Am(Matchplay will be great), it'll be interesting to watch how the course fairs against the very best AM's and the Pro's to be.