I think the greenhouse is pointless too as you can have a garden right outside that does the exact same thing without bugs flying around in your home
Have to disagree with you there. The garden only has nine(?) plots while the Greenhouse has 18. 27 plots (that each deliver 2-4 ingredients
without Green Thumb) is far, far, better than just nine. If you plant the right things you have an endless supply of ingredients to level up Alchemy
and allow you to chug potions to your heart's content and that's not even taking into account the other two gardens you can have by owning all three houses.
In fact, it wouldn't surprise me if Alchemy is the new Smithing in terms of ease and speed of getting to 100, and making easy money, now.
When all is said and done, though, it still comes back to what I said earlier. You don't
need anything except the Kitchen, the Hatchery, the Shrines and maybe the Library. Everything else can be achieved in the Main Hall or outside.