Although suits can be rented for a variety of occasions, sometimes people decide to purchase a suit that will likely be used whenever it's necessary to dress up and look formal. One of the best reasons to purchase a suit is that they will likely last for a long time and be usable for years. Because a suit can be so important to an occasion, it can also be a good idea to consider custom suits created since buying an expensive suit off the rack might not always fit the best, especially if someone is particularly short or tall.