For me when living here I did not get suits made as a 42L from Marks and Spencer fitted me well. But when it came to shirts for work, fashion changed so it was difficult to find shirts with top pockets which I wanted and I liked a slightly looser neck (in the days when we had to wear ties) which meant for off the shelf I would have to have a really baggy shirt and also the arm lengths did not quite fit and the cuff was a bit tight with my fitness watch. So buying "made to measure" gave me exactly what I wanted. It was not about cost it was about having something I felt really comfortable wearing and looked very smart. And no I would not have gone to Saville row to get them made there.