R&R for the couple: Destination weddings are great for a couple that wants a more laid back experience. If you live in a busy urban city, you might enjoy getting married at the beach more than in the church down the street.
One-stop shop: Most destination wedding venues are one-stop shops and have everything that you need in one place. These types of resorts also often have planners who will take on all of the work with vendors. Furthermore, most have on-site caterers!
Creates a great home base: Here is one that really hits home. Coming from a family that moved around a lot, I never felt like I had a real home base for which to have my wedding. If you come from a similar situation, or perhaps you and your fiance are not from close to each other, a destination wedding can be a great way to create common ground.