Cruise Wedding Reception or Not?

Hello everyone! My fiancé and I are finally making plans to get married aboard the Carnival Victory in November. We keep going back and forth with the plan for the day. We will be getting married at sea, so all guests attending will be on the cruise. Carnival offers just the ceremony, with a champagne toast and cake cutting, or the ceremony along with an hour reception. Financially, having just the ceremony would be better for us, but I feel it’s too cheap to not do a reception. Food is included anyway for a cruise, so it kills me we’re double paying to have a cocktail hour, but I don’t want guests to de disappointed. Should we just pay the extra money and have a cocktail hour that includes appetizers and drinks? Our guests are paying their own way for the cruise so isn’t is almost expected to have some sort of reception?