I agree with railtraveler - the "gourmet crepe restaurant" idea is a recent fad. Creperies are fun, but "not all that", if you get what I mean.
Crepes have always been the equivalent of funnel cakes and similar food that you find at street fairs and amusement parks. Also, they are cheap, quick and a convenient way to feed your family at home, using whatever you happen to have on hand as fillings. They are not "serious food", and really shouldn't be taken as such - especially if you have to pay "serious" prices.
Eating them on the street or at the open air markets is the most fun, in my opinion. But if you want to go to a restaurant to eat them, it's interesting to try "galettes", which are savory crepes made with buckwheat flour.
Thanks for all the info, it was most helpful. Rumples, I had a look at Creperie Broceliande on TA and it sounds much better than the places I had in mind. I think I may give it a whirl.
With pattyinparis @4 as a point of departure, I submit that once the luxe aspect has been satisfied, you will be drawn all the more to the stands on the streets and in the parks ... good menus of savory or sweet ... good prices ... near a park bench or a wall for sitting ... or on foot ... near the place de la Concorde end of the Tuileries, for example.
Any along the rue moufftarde but especially the one with the longest line.
Along with croques, slow food nation's own fast food.
The only caveat with crepes is this: Buy them from somewhere that makes them to order. There are more than a few places that just fill them to order off a pile of pre-made crepes. Ix-nay!!