Well, it would have to depend on what kind of event you intend organizing. Because if you are going to be hosting a corporate affair, the island mood might not be entirely appropriate. It may not even be logistically practical if, say, the venue proposed for the event was to be out in Maui. Again, it just depends on what kind of event you intend hosting. And for how long. And it might not be such a bad idea after all.
Say now that the event needs to be spread over a week to ten days. Getting there and back should not be entirely inconvenient for the invitees if you can allow agents or event organizers to handle the maui event rentals on your behalf. For a fee, you are outsourcing all work that would have been placed on your shoulders. There is less hassle for you in this way because while you get on with the business of your conference, event organizers take matters into their own hands in terms of the hard labor that surrounds all logistical operations, from the booking of flights to settling all conference attendees comfortably in their rooms.
The island mood suggestion has not been made lightly, when you think about it. Because conference work, if all are fully engrossed as they should be, can be hard work. And if you are going to be clustered together for this long, you may as well enjoy your breaks in-between to the full extent of your human and emotional capabilities. Have a good time, in other words. But for the purposes of decorum and reputation, always within reason.
But if you or others cannot get to Maui, your event planner can still help create the mood right where you are.