I have literally got the same brands, same product (1 g vaporizer cartridges) usually about 40 to 75% less in Arizona, Illinois, and California.

I remember the stand out was getting four 1g select brand cartridges for $99 including tax in Arizona. A single cartridge of the same type was $114 Massachusetts after tax.

I was in AZ last week and they were 2x for $77 plus tax, so still less than 1/2 price.