They are actually very steadily available, i've yet to see a K&K (Rattrays for example) or DTM produced blend (DTM makes HU blends) sold out at my source or it is a "limited".I assume that HU tobaccos move off the shelves quickly, ammirite? I imagine finding a tin with age on it at a BM would be bittersweet, thinking you got one with age on it, to find that it has mummydusted.