If Cali passes 19, we in WA and many other states will be able to see the "fall out" and use their experience...as always, CA will be first and others will follow.
I could never afford to move back to NorCal as much as I would like to, but we have decent medical laws here in Washington State (in part, thanks to California blazing the trail) and I hope it won't be too many more years until marijuana is legal across the board.
Until then, things are sure a lot better than they used to be, and I personally thank California for taking on so many headaches and "growing pains"
I already do a good amount of visiting as most of my family still live in California, so passing 19 wouldn't change my living or visiting habits....