There is quite a low minimum order quantity on these and I would stay do invest if even you are just using these for a one off event. If you have many staff it's worth going with this option for the name card end of things.
There is nothing more important than first impressions, and when you are hosting an event where you expect people to pay you good money to attend it is important to have the finishing touches like these badge holders. A good buy even if not so low cost
I'm glad these were so cheap and functional.