3 days in Amsterdam, most of it on weekend, and the coffeeshop near my airBnB had Internet

That is not a vacation.
Amsterdam?
Didnt have you in Israel also Cannabis?
But also for medical reasons ;-)
No more marihuana tourism in Amsterdam, my friend. They implemented a law back in 2010, if I recall correctly, prohibiting citizens of other countries buying marihuana in Holland.
So, no. I guess Zvi went to the red light district instead

You are misinformed. Cannabis tourism is still tolerated in Amsterdam coffee shops. Although technically illegal in the Netherlands, there is no punishment for the crime therefore the city of Amsterdam (and some other cities) does not enforce the laws.