With the EU restricting what paint manufacturers can put in oil based and working towards banning them all together water based will be the only answer. The pros love oil based for wood work because of the smooth finish, which no matter how good you are it is just not possible to achieve with water based paints. The problems with quality of finish when using water based paints when spraying are eradicated. That same smooth, level finish is not just achieved but improved on with zero brush marks and perfect lines from masking. Compare what we do more with the finish on your car door than your front door.