In the good old days a coffeeshop had its own group of growers/suppliers, which meant the coffeeshopowner had influence over the strains their growers produced, and we knew how the cannabis was grown. The prices were the same all over the Netherlands, just because there were no other takers in our line of business. Sure, some people would buy a kilo to take abroad, or even some more, but they bought from coffeeshops, not from the growers. There was a raise in prices during and after the holiday season, for two reasons: Growers take holidays too, when they do, they cannot grow, so they lose production time, like half a harvest. Another reason is the heat of summer, marihuana plants are pretty easy to grow, but when the temperature in a growroom goes above 27 degrees centigrade, the growth stuns.