One of the arguments i used to use while going from door to door was:
If we would now live in the time of ancient israel and if we would want to adore God in the correct way then we would have to be part of the choosen people of Israel. Adapt to its laws and customs, etc. That was the right religion then.
If we would now live in the time of Jesus and if we would want to adore God in the correct way then we would have to be part of the fellowship of Jesus and his ancient christian congregation. That was the right religion then.
Now we live in 2004... if we wish to adore God in the correct way then we need to associate with the correct religion.
The issues is: which one is the correct one?
Going from door to door I of course implied that JW is the correct one. With all its strings attached, if we liked it or not.