If you're thinking of opening something because you think it would be neat to be able to legally have access to all the weed you want, then:

1) No matter how legal it is in your state it will still be illegal, and you will be prosecuted and/or persecuted.
2) You would achieve your goal more readily if you were to do like stinky, and be a caregiver (AKA weed grower), and work your way up to over 30 varieties.