[GTL]

very few strains are pure sativa as a pure sativa produces "airy" buds and requires a lot more plant to produce the same weight that an indica would put out. usually a sativa is mixed with an indica strain and then plants are selected that have sativa qualities for things like taste, smell, and quality of high, while still having indica properties for the grower, like a denser bud, and a smaller bushier plant.

that said, i prefer the sativa hybrids more than the pure indica strains. i'm a big fan of nyc diesel. not that i would pass on any top notch strain.