-The average market cap of Canopy, Aurora, and Aphria is around $5.7B -The combined market cap of Village and Emerald(Pure Sun Farms) is about $1B.
You could easily argue the combined market cap of Pure Sun Farms needs to rise by 500-600% to be more in line with the valuations of producers they will soon be neck and neck with in production. In fact, they may surpass them in 2020-2022 with Delta 2 and Delta 1. Aurora and Canopy can buy a lot of square footage, but the cost to manage, and spread out expertise won't be easy.
Aphria is the smallest of the three at $3.3B. Representing over a 200% rise if Pure Sunfarms is to be equal to them, as I think you can easily argue they are.