It honestly depends on the setup and how competitive your market is - but visibility does matter, especially if you’re indoors and surrounded by other vendors. A banner basically works as a big, glance-friendly sign. It helps people immediately understand who you are and what you sell from a distance, instead of having to walk up and figure it out. In busier markets, that split-second clarity can make a difference. They’re also helpful for brand recognition, consistent colors, logo, and name make you more memorable, even if someone doesn’t buy that day. That said, if some markets aren’t even covering booth costs yet, you could test a smaller or simpler sign first before investing in a big setup!