All I can say is that I got 4 kegs recently and kegged my first beer. I'll never bottle again. But, we drank the whole 5 gallons in a week which was a bit scary. Having beer on tap, at my fingertips, at any hour of the day may be too much temptation for someone like me.
Thought maybe I should shake the kegs once in a while so I'd be forced to wait for them to settle back down but I'd probably just end up drinking the foam.
I have 4 now and I can tell you that I'll probably have 4 more real soon!