Got any actual facts/proof/statistics on that? I bet not. There are 18,000 shops in Thailand so there is some very steep competition so they are NOT making a mint!
There are many challenges affecting profitability.
Market Saturation: The rapid influx of new businesses led to increased competition and lower prices, making it harder for some shops to turn a profit. Some observers note the market has become "over-saturated".
Evolving Regulations: Frequent and sometimes unclear regulatory changes have created uncertainty for businesses, with recent regulations aimed at restricting recreational use causing many to scramble and adapt.
Illegal Imports: The presence of illegal foreign cannabis imports has been cited as a factor driving down prices and impacting the profitability of legitimate businesses.
High Operating Costs: Indoor cultivation, which is popular, involves significant expenses for electricity, water, and other resources.
Unclear Guidelines and Enforcement: Lack of clear guidelines, especially regarding aspects like pesticide use, poses risks and requires businesses to prioritize quality control and public safety.
There also will only be a very small handful that will be able to stay open as legal dispensarys. โHiring a medical professional and updating the shop to meet clinic rules could cost hundreds of thousands of baht."
https://www.chiangraitimes.com/health/cannabis-dispensaries-thailand/