I have been working with events for almost a decade now. The fun of handling one is really unpredictable.
In events you have all the means to have fun. First, you are not working from 9 to 5. You have a very flexible time and schedule. You will meet a lot of people with same interest as you and people who will be interested in what you do. Meeting these people means creating a bigger network everyday.
In events, you have the privilege to be the first to try, to be the first to attempt, and be the first to succeed. In events, you have the fun of travelling from one place to another, depending on where your event will be. The most fun of all is that you are being paid to do all these.
There are also a lot of difficulties in handling an event. But the obstacles are all worth the try when you reach your goal and when you see all things are falling into places.
At the end of the day, you have achieved something worthwhile to have done.
This is the fun of doing events management.