|Where I live, for dro (mid-stage weed, better than mids, lesser than haze), .5 of a gram to .7 of a gram is a 10 ($10), 1 gram to 1.2 gram is a 20 ($20), and 3.5 grams aka 1/8 of an oz ($45-55, pending). When buying, keep in mind that there are only 4 types of weed. There is mids, dro, haze, and crystallized. All other names are just categorized under the 4 main types.
Mids is every weed that is fertizlized, and the reason why it causes headaches to some and usually doesn't last is because when the bud is fertizlied by a male plant, it takes away the purities to store in the seeds and stems (which you aren't supposed to smoke). So when you see thick stems and seeds, you see mids, and don't pick up a a gram for anymore than $10.
Dro is the typical mid-weed as we call it. It gets everyone high, its kind of soft, there can be spectacular sorts of it, and really bad sorts of it. This is usually the most common kind of weed, and it is grown using a different method. Never buy a 10sack with less than .5 of a gram.
Haze is an above average weed. It has a different texture than dro, and is more fluffier. Usually, bags are skimped out, but because haze is quality. You can find a 10 at .3 to .5 of a gram, pending.
Crystallized weed is weed then underwent a certain process that made it age with no oxygen, thus causing the THC to seap out to the exterior of the plant. You can see the THC as white powder, it looks like a chunky and shiny crystal, thus the title Crystallized weed. This is usually always top notch (as Northern Lights is Crystallized, and so is Ak47, White Widow, White Elephant, etc.) These bags come skimped out, but they are usually the same as hazed as to how they are packed. However, it is a lot harder to find crystallized weed.