The argument against yours is, Pharm Pods can be placed anywhere and does not need a dedicated space, Renting space or buying commercial space faces many restrictions by law as in proximity to churches,schools etc. Pharm Pods can be totally self contained via wind power source for electricity and actually placed anywhere. The lighting requirements for larger spaces would be greater than the pharm pod SOG (Sea Of Green )method, heating for winter growing would add costs to more open methods and with pods the heating has to be maintained due to heat emitted from the lights so no need for extra heat I could go on but there are always pros and cons to every venture