No price discussion.
Alright, this really depends on how much is in the bag, can vary widely, the purity, etc. Generally speaking, if one assumes a bag is a point(safe round number there), and the bags are 50% heroin( again with the assumption), I personally would call that a moderate addiction, whereas others might call it light or heavy. There really is no answer to this question, so I'm going to close this.
Can also send it to drug culture if you want, just pm me.