Your suit spends much more time in your closet on a hanger than it does on your shoulders. So many people make the mistake of ruining their suit by having it hang on a cheap wire hanger. Over time, a wire hanger can tamper with the shape of the shoulders and negatively affect the appearance. If you are going to invest a couple thousand dollars on a bespoke suit, it is well worth spending a little extra on a nice hanger to make that expensive suit last longer.
The shoulders of a suit are regarded as the most important feature. Most thin hangers will leave creases or lines due to improper support. Over time, using hangers that are shorter than the actual width of the jacket will cause the suit to wear down and lose its shape. Additionally, wire hangers are relatively unstable. High quality hangers that have a lot of thickness and proper width will allow the suit drape naturally.