Nordig Tugs are very popular with the retiring and never owned a boat before crowd. They have a catchy look, but very impractical.
In years with an actual summer, September boating is a GREAT month to catch up with the full time summer cruiser crowd. These are the serious locals who start in May and don't go home until October, making the Alaska trip most years. These are the ones that you can pick up a lot of ideas from. You can always pick them out with their ready to go stern lines (a typical cozy anchorage practice in these parts), usually a decent capacity freezer tucked into an almost unseen location, easy to deploy dingy and other notables. Boats are usually from 37 to about 55 feet. You will see Roughwaters, 45/47/49 Bay/Meridian series (actually a good NW boat), quite a few OA's, a few 32 GB's. An assortment of interesting steel/aluminum trawlerish vessels of custom build. Among all of these all weather full season boaters, you will almost never see a Nordic Tug. American Tug's, occasionally yes, NT's no.
The problem is that the NT's were built out of an image, not real life practical lessons. You see quite a few NT's locally, but almost exclusively they do the Anacortes, Friday Harbor, Roche and then back home route, staying in marina's almost exclusively. An exception here and there sure, but these are not serious northwest cruising boats. They have the look, that's all. They are not even trawlers for seaworthy benefits, just semi planing hulls and not very deep. They are cramped, poor use of space, and awkward to even entertain in given the small salon's.
In short, the biggest reason for Nordic Tug is to look good in the magazines. On the water, they are a wreck (pun intended). I don't have a picture of one high and dry in the Swinomish slough yet, but I've always had faith that day is coming. For those who don't know, going high and dry outside the well marked channel is the local badge of shame for the "checkbook, but no interest in learning how to boat" crowd. I'm accumulating a decent slide show after starting my collection a few years back.