Lets not forget the 88ss and 99ss Nortons. The total number of 88ss + 99ss bikes was probably about the same as featherbed Manx production, around 1000 bikes, and there may be less of them left now because they were not really valued or sought after until very lately compared to the Manx, which was always revered and usually taken care of much better than street bikes. Also no one is making spare parts for their engines the way replica Manx engines are being pooped out left and right. If you blow the engine in a Domi 88 or 99 you could be in big trouble and a long search for good parts.
The 650 Nortons are also very rare and desirable bikes with much lower total production than Commandos or the 750 Atlas and scramblers. It is easy as pie to find Commandos and Scramblers laying around, but if you really had to have a 650 Manxman or SS today, you would have a much tougher time finding one, especially in original trim. 650 engine parts are damned hard to find too, especially the cylinders and heads.
Someday more people are going to catch on and start looking for SS Nortons and the prices of them will end up with or above all the other late 50s and early 60s British sporting roadsters, so get yours now and stick in in mothballs.
