I used to work for Gambrinus back in 2006-2007. They are the smallest malthouse in north america and they actually make quite a variety of malts, about 15-20 in total. they specialize in organic malts. the pale and esb are indeed the most popular, and the organic pale sells well too but is expensive. we also sold a lot of vienna, honey and wheat malt. anybody can come to gambrinus and order just one bag if they want, or more. i think we sold a 25kg bag of pale (the cheapest malt) for about $20 canadian.
glad to see people are homebrewing with this stuff. i never tried homebrewing with it myself as i wasn't into that back then and now i live in ontario. just wanted to let you guys know it is a well run good quality place and since it is smaller you get a better product in my opinion. besides a few managers the place was run by about 4 people for the most part, plus a chemist and a mechanic.