I was struck by the shop at Summerset Hills about a dozen years ago. Set in an old garage or perhaps a small barn, apart from the clubhouse but adjacent to the first tee. So understated we couldn't belive that this was the shop for such a prestigeous club. But that was exactly my impression of the whole day- the course and the clubhouse as well. Definitely a place (at the time) which made the statement, "this is a place where golf is played. No need for putting on aires here." I hope I have the chance to get back and see if it is still that way today.
Others shps similar in nature: Camargo, Crystal Downs ( at least before the new clubhouse, which I haven't seen), and Fairfield in Connecticut.