The Nebraska Renaissance Faire (May 5th & 6th / May 12th & 13th)
The Midlands Pirate Festival (August 25th & 26th)
Down on the Farm Festival (September 22nd & 23rd)
Absolutely, it makes it more fun, but not required.
More food than you can shake a turkey leg at!
All sorts of fun things like costumes characters, unique accents and language, plays & performances, magical entertainers, musicians, poets, artisans, retail shopping, festival foods, a circus enviornment all set in the recreation of a historical European village.