I started out kegging, didn't bottle at all for almost a year. I remember when my dad used to brew how much of a pain it was dealing with bottles all the time, so I just went straight for kegs. I bottle on occasion, usually when I know it's a beer I'm going to want to share.
I've got 7 or 8 cases of old pry-off miller lite bottles, all empty at the moment. I've got four kegs, looking to get more soon. Eventually I'd like to lager in them.
I find my kegged and bottles beers to have about the same level of quality. One thing to note: my bottled beers have tended to be more clear, probably because the age more/get consumed more slowly than my kegged beers.