If you don't have at least some pressure in the keg (co2 tank) the lid most likely won't seal properly. You add less sugar to the keg because to get the proper seal you need to put some co2 pressure in the keg, and hence it is already under some pressure. In the bottle, the headspace needs to pressurize before the co2 will remain disolved in the beer, with the keg you have already added some pressure and filled the head space with co2.
No matter how rich you are, you can still only drink 16 or 17 liters of beer a day.
Originally Posted by quixotic
The true definition of an addiction: not stopping even when a dog is having his way with you.:D