It may be that it's different in the UK (where I am), apart from anything weed generally travels much shorter distances here. I heard from friends in one region

It may be that it's different in the UK (where I am), apart from anything weed generally travels much shorter distances here. I heard from friends in one region here that after the police busted a local farm with a few million £ of weed grown there, there were a couple of months where every dealer had incredibly limited supplies, mostly coming in from Holland rather than elsewhere in the UK. There definitely isn't as much growth here as west coast USA. Of course it's also possible that there are dealers making good money off weed here and I just haven't come across them. But my anecdotal data points are at least reasonably varied, from well off people in good jobs to a couple living off benefits in council estates.