The vast majority of inventory at most dispensaries is not cultivated by the dispensary themselves. So, the state of NH would probably never actually grow pot, they would just sell products from cultivators.

Also, the self-grown products at dispensaries are rarely any cheaper than the inventory which originates elsewhere. So I don't think price will be much of a concern. This is especially true when you consider that NH would be one of the largest wholesale pot buyers in the region if they actually opened 5-10 locations.