It is a major investment. Depending on wholesale pricing in your region the ROI could be as quick as one crop provided you get a good one lol. If starting a commercial operation in Colorado for example it would take at least 2x as long to recoop the investment as it would in Oklahoma where wholesale prices are twice as high as in Colorado. The time to start an operation in Colorado has passed, get setup in a fresh state, grab the big bucks before the market is flooded and pricing falls. Setup with efficiency (low production cost) so that when prices do fall you are already ahead of the game.