I can get stronger block weed than normal weed, while the cheapest type, what we call mersh, is weaker, it definitely gets me more buzz for my money, from what I've heard you have to be in the right area where people apreciate good mersh rather than dealers just selling the cheapest stuff they can get for stoners that are broke, in my area most of the stoners are black and for some reason I havn't heard of good mersh in areas where most smokers are white, most stoners in London (judging from people i meet at raves, including people much older than me) don't know weed can even come in a compressed block. I haven't had it for years but there is a type of brick weed called sess that is truly amazing, I know two people that had been smoking skunk daily for years who have passed out from it, one from just one joint, another woke up two hours later with most of it left in his hand. Its an extremely mellow buzz and is loved by Rastafarians, some of which refuse to ever smoke skunk. I've also had regular buds compressed into a block which it goes without saying was extremely potent.