Coming from a "legal" state, I've noticed a pattern on the availability of what we're calling "boutique" weed...the shit that has a name. A strain will flood the market fort about 10 days to 2 weeks. At the end of that a new strain floods the market, but hash/ concentrates/ edibles of the previous strains come available for about a week. And the cycle continues. So if you stumble on a strain you really like, it'll most likely be gone by the next time to score.