Here are a few things you should consider when buying Special Event Liability coverage:

1. The type of event: Different types of events may have different coverage needs. For example, a wedding may have different coverage requirements than a music festival. Make sure to select a policy that is tailored to your specific event.
2. The location of the event: The location of the event can affect the risks that may arise. For example, an event held outdoors may have different risks than an event held in a hotel conference room. Make sure to discuss any unique risks associated with the location of your event with your insurance provider.
3. The number of attendees: The size of the event can also affect the coverage needed. A larger event may require more coverage than a smaller event.
4. Any additional activities: If your event will include activities such as games or rides, you may need additional coverage to protect against the risks associated with these activities.
5. The duration of the event: The length of the event can also impact the coverage needed. A longer event may require more coverage than a shorter event.

It's important to carefully consider these factors when purchasing special event liability coverage to make sure you have the protection you need.