While marijuana legalization continues to spread, more growers are introducing and creating new strains for cannabis users to enjoy. Although users can easily purchase low-grade strains or shake for a cheap price, the THC content and quality is much higher in the more expensive top-shelf strains. Typical top-shelf cannabis can go for as low as $45 an eighth, but the price for high quality bud is rising. Some of the most expensive strains sell for up to $800 an eighth, including one of the most expensive strains, Isla O.G. Canned Cannabis by Top Shelf THC. One can containing an eighth of cannabis sells for $100, making an entire ounce of Isla O.G. a whopping $800.