Number of guests
Fixed costs such as venue, AV or production are shared among more people: the larger the group, the lower the price per person.
Date and season
Thursdays and Fridays in December, June and the weeks of major trade shows such as MWC or ISE are the highest-demand dates.
Venue
A museum or iconic building for exclusive use does not cost the same as a restaurant with a private room.
Food and drinks
Cocktails, gala dinner, chef's menu, wine and open bar make up a large part of the budget.
Production and experience
Set design, AV, shows and bespoke activities raise the experience and impact of the event.
Accommodation and transport
For conventions and multi-day events, hotels and transfers are usually one of the main items.