I posted in a similar thread about a day ago. I felt liberated by the "cheaper" greenhouses. For one, I knew it was about extending my growing season but that I would still overwinter in the house. I knew I didn't care if it didn't last, because it was under 100. It came with shelves and was lightweight, for ease of moving ... I needed to buy a new one this past week. Good thing is, this store goes on clearance for their greenhouses right now. 50% off at ... Big Lots, yep I buy my greenhouses at Big Lots. Not a fancy big box home improvement store or nursery. You'd be surprised how my plants continue to grow into November before needing to go in. Up to you, but you don't need to spend 300.