for really high quality, most pushers in the NYC regions just sell set price bags, the most common being dubs or gram bags which are $20, 50-bags/cubes which are, obviously, $50 and usually have around 2grams. a lot of the time, especially with delivery services, they sell by approximated volume of the bag and not by weight which can end up being good or bad for you so you just have to hope and enjoy what you get...