Paul
To answer your questions in reverse order:
1. Yes--we give far too little respect to subtle greens. Why, well, because we often confuse "subtle" with "simple." Particualrly on a first visit, it is too easy to dismiss flattish looking greens as unintersting. They don't strike you visually as do highly contoured greens, nor can you do on them the goofy-golf tricks that Neil lists as characteristics of "wild" greens. However, the more you play well designed subtle greens, the more you see how well they are integrated into their surroudnings, and back to the approach shot and then back to the tee. Subtle greens have places that you must and must not be, depending on pin positon and external conditions, but you only know this after playing them a number of times. You also must be able to read subtle greens as well as wild ones with one exception--far less need to judge multiple breaks. I would argue, strongly, that that latter phenomenon/design choice is a highly overrated one.
2. Likewise we often confuse "wild" with "complex." It is easy to build a wild green--just bury some elephants and give the shaper the intoxicant of his preference, and after an afternoon or two in the dozer Bob's you Uncle, you're there! As a result, I would guess that the percentage of "wild" greens that are really "freak" greens is at least 95%. However, it is very hard to build a green which is complex, and will stand up as so after multiple plays. I persoanlly feel that this is because it is extremely difficult for any arhchitect to actually predict how his or her golf course is really going to play, once subject to the scrutiny of actual golfers, in the heat of battle. In my opinion, many of Neil's characterisitics of "wild" greens really define "freak" greens--e.g. being able to just touch a long putt and have it end up near the hole, being able to approach a hole from 2 opposite angles, putts going in from behind the hole, etc. Sure these are fun greens to play, IF you only play them once or twice, but are they really good architecture? I think not. I think they are a cop cout, no matter how pretty they look.
3. Which gets me to the first question. Yes, we (GCA'ers) are overenamored by wild greens. Why, well for the same reason that we are enomored by dumb blondes, and one night stands and anything that is, well both seemingly beautiful and "strange." However, when we wake up in the morning, or have to play that hole again and agian, will be continue to be enamored, or will we get bored with having to putt at a 90 degree angle just hard enough to have the fringe at the apex slow the ball down just enough to let it crawl to the hole? No, probably not bored, but less and less awed and more and more bemused, and maybe a little more and more sad. After all, dumb blondes are people too......