read up on bottle aging.
the advantages of carboy aging is each bottle can age differently but whats bottled out of a carboy will be the same. carboy also gives you the option of racking it off anything that may drop out later down the track.
i've got a couple of meads that i bottled early and both settled out in the bottles months later. looks icky having sludge down the side of the bottle.
of course carboys are not cheap and its a real pain having to hold off brewing because the carboys are full.