Back in the late 90s, I had a dozen made-to-measure dress shirts and 3 made-to-measure suits made by Ascot Chang while in Hong Kong.

They wore incredibly well (for several years, I rotated the same 3 suits and 12 dress shirts on an every weekday basis).

There is also a huge difference in comfort between off-the-shelf and made to measure.

If I had much use for a suit these days, I would not hesitate to have a few made to measure, along with a new set of shirts.