I told you, you have to concider the side benefits (health care, insuranse, pension plan, ...) and the quality of life.
You can rent a house the size of a castle for less than 1000 euro / month. In paris for that amount, you have a 27 square meters **** hole.
It's not about the number, it's all about the quality of life and we call it Belgium.
You can't give an amount to the pleasure you'll have eating very good food everyday, you can't number the friendlyness of the people there.
Would you live in Kazakhstan for more money ? You should play football 