Is entertainment necessary?

Hey y'all! We're stressing about our Halloween wedding as it gets closer. I was planning on having a tarot card reader for entertainment during reception since there will be no alcohol and probably little to no dancing.

However, fiancé thinks it's unnecessary money spent because it's only 30 people and he thinks everyone will just mingle and catch up with each other anyway.

I am torn because everyone loved the idea when I pitched it and I have a reader waiting with a contract so I need outside input.

Yay or Nay??

EDIT: I'm booking her as my wedding gift to myself. My fiance understands that I want the reception to be a little more than just a fancy dinner party.

Thank you so much to everyone who weighed in. Your help is much appreciated!! Congratulations, fellow brides and grooms! I hope all our weddings are amazing 🎃