Patrick,
There's a 6 or 7 year old daily fee course about 20 minutes north of me called Saddleback Ridge which has more quirk than 99% of courses built in the last 10 years, and it costs $29 for 18 on the weekend!
Let me list some of its quirky features off the top of my head:
- only two bunkers on the entire course, only one of which really comes into play
- 6/6/6 layout, with one stretch of 6 straight holes where you do not play a par 4
- while most of the greens are relatively tame, there are some wild ones, including one on the longest par 5 that has a very large BLIND false front, multiple tiers, and is built into a hillside so its damn hard to read, plus a couple other greens where if you putt/chip off the front the ball may run 30-40 yards off the front (ala ANGC #9)
- a steeply downhill par 3 that plays with the prevailing wind and has a green that runs away from you
BTW, playing an approach to a front middle pin on that green with the blind false front has perhaps the highest Kirk factor of any shot I've ever played. Once the ball lands it can sometimes take 20 seconds for it to reappear rolling back off the front of the green and down the hill, so you really gotta watch that shot long after the point where you'd normally have put away the club and walked a dozen steps down the fairway. If you do catch that false front, the chip/putt/pitch (your choice) back up to the pin is no picnic either, I've seen people take 3 or 4 tries before getting it up there unless they decide to play safe. Its actually not an unfair green however, its 40-50 feet deep but probably 150 feet wide so there's plenty of room to play it away from the hole if you want to avoid getting into trouble!
There are people doing them, but probably most developers either don't like "unfair" stuff themselves or are worried about losing business from people who don't like it. Its easier to play safe and avoid controversy. I suppose its like if you had a course in an area that's 50% democrat and 50% republican, if you favor one party you could put up a sign in the clubhouse showing your support, but you'll piss off more people than you'll bring in so its probably not a good idea.