One of the great advantages of kegging your beer, is doing away with cleaning beer bottles.  The simplicity of filling and cleaning a keg is attractive to most  home brewers. Secondly you can gain more control over the carbonation process as well as the advantage that force carbonating means you will be drinking your beer sooner.

There are also brewers  who believe that natural carbonation, and the extra maturing time of several months  in green or amber bottles,  benefits the style and develops the flavour of many specialty beers beyond what kegging can offer.   

The great thing is the choice is yours.  Kick start the keg for that party for the weekend, or bottle and generously mature your special edition brew to be savoured months away.