Googled a bit... found this
http://www.fortwayne.com/apps/pbcs.dll/article?AID=/FW/20130315/LIVING/320132732/1013
It's about spaghetti but applicable to all long pasta (or so it says)
Some interesting viewpoints expressed there that I'd not heard before, like how Italians regard the fork+spoon method and 'not cutting the pasta in polite company'.
All of a sudden I am struck with the idea that this is yet another one of those social devices used to separate the 'in group' from the 'out group'. It takes years of practice to manipulate the pasta without covering your clothes in sauce and Italians get to do this in the privacy of the family home. Not so long ago, the tourists would have had their earliest, clumsiest efforts in the restaurant setting - much to the amusement of the serving staff, no doubt.
Long macaroni does appear to be on sale in UK but I guess it's still a 'niche' product and not many have tried it.
We're used to macaroni cheese made from the 1" pieces and a bechamel sauce thick enough to make the pasta pieces stick to each other. You can thus impale the tubes through the side and rasie them to your mouth without any of the sauce inside the tubes draining out.
It was only a year or two back that I learned it is an American recipe, not a 'British classic'.