there really arent out of fashion suits.
Try walking into shul in a plaid suit or a powder blue suit. Yes, there are out of style suits.
If you are talking about only dark suits, its a little harder to pick up on. But there are definitely in-style and out-of-style.
Regardless, what is very ironic is that Yekkes were once made fun of for wearing short suit jackets. Now its “the thing to do.” Looks like us Yekkes were way ahead of the Litvaks 🙂