This is slightly tangential to the topic, but at least somewhat responsorial to doctorredanman.
On many, if not most, of the non-links courses in Scotland, golf can be played in the winter, only if you allow the "real" greens to have rest from time to time--from frost, water saturation, etc. As a result, in winter golf over here, you tend to play a course that has one or more "winter" greens, which are normally small (rarely over 1500 square feet) bits of mown fairway or rough, usually to the side and/or short of the summer target. I have noticed in recent years a trend to "formalize" some of these little beauties by shaping and maintaining them througout the year (when I say "beauties", there are some incredible creations, but threre are also far more slothful dogs, which are just a lazy greenkeeper's (or greens commitee's) way of saying--"bugger off!" you winter golfers!
Does this exist in the usually frozen north/northeast of the US? If not, why not? Why not have a chance to play at least some of, say, Oak Hill, when you get one of those winter thaws.......?