Nothing wrong with used clothing as long as it looks good.
If you want to be fancy, the gussied-up term is "resale" or "vintage." Women have been buying "resale" and "vintage" for years.
With the concerns about bedbugs you have to be careful. If you have a reputable resale store in your area, patronize it. In the big cities there are vintage shows. Otherwise, buy from eBay only from reputable dealers.