bud wouldnt cost you more than 5/6euros per g (strains like white widow, northern lights, bubblegum, orange bud etc...). There r more expensive strains (like blueberry haze i found 12euro/g, or super silver haze for 15euro). There r other strains like skunk#1 i found for 4euro/g or thai that was 5euros for 4 grams at some coffeshops. And yeah you could smoke out. I dont think i smoked too much inside when i was there (i was staying at a friend's), every day i took my shit, went to the park, sit under a tree by the canal and smoke for hours. You can meet many people that way, just invite them for a joint/bowl.