Yesterday, I played a course that had markers at 200, 150, and 100 - painted circles in the center of the fairway. Unfortunately, my crew does not customarily play down the center of the fairway, so finding the markers involved a bit of hiking around. On some holes we could not find a marker, so perhaps not every hole was marked?
The par 3 holes had distances on the scorecard, but the tee boxes were quite long and unstructured, so distance to the center of the green was a pure guess. A bit of wasted time while we haplessly discussed the challenge.
We have been playing together for many years, so we know pretty much how far each one of us hits a particular club. (E.g, "that looks like a 6 iron for you") We score mostly in the low to mid 80s at 6,000 yards, which is our preferred length.
My mood really brightens up when I see that a course places easily seen stakes in the middle of a fairway. Generally, though, you never really know what you are going to get. What is really "fun" is a course that teases you by marking some sprinkler heads, but not most of them. So you look, never certain of what you will find. One of the guys has a range finder, but that is only useful on courses that place reflectors on the flagsticks.
Anyways, it would be nice if the USGA established a consistent, easy to use system of marking distances to the center of the green for use at public play courses.