Those taxes on weed don't look bad compared to what I think is the current equivalent product with even higher taxes - cigarettes - how is the situation different in your view?
1 - https://dor.wa.gov/sites/default/files/legacy/Docs/Reports/2...
Dunno, it's easier to order black market cigarettes online with a credit card than to order black market marijuana.
The state excise tax (pre-sales tax) is 37% according to https://lcb.wa.gov/mj2015/faqs-on-taxes .
[1]: https://dor.wa.gov/about/statistics-reports/recreational-and...