Whether to include an open bar or a cash bar at your wedding can be a tough call. You want to make sure that all of your guests are happy and have a great time at the wedding. However, you don't want to go way beyond your budget just to make people happy. If you're torn between these two types of bar, here are some things that you should consider:
1. Cash bars are going to cost you a lot less money in the end, but sometimes they seem tacky to guests.
2. Open bars are seen as a nice gesture, but they're very expensive because they include everything.
3. Open bars may lead to a little bit more of rowdy behavior at your wedding since they are, after all, free and encourage drinking more alcohol than usual.
4. If you're going to have a cash bar, you should make sure that you mention it on your invitations so that guests can expect to pay for the alcohol.
At the end of the day, do whatever is best for you!