I would like to see a feature where instead of a house (which is basically a farm), we could buy a Shop. We would need to have the requisite skill for the shop we buy, and we could only have one, but they would buy items for more than the vendors do, and sell items that we can't make or buy elsewhere.
For example, a bakery would buy grain for somewhat more than what a vendor does, and sell cakes. Cakes could be linked to achievements, like if you have a birthday cake in your possession on the anniversary of when your Glitch was created, you would get the happy birthday achievement. The output of cakes would be limited by the input of grain, but it could be much more profitable than a house.
Other shops could be a bookstore (buys paper, sells books), butcher shop (buys meat, sells sauage/fancy cuts), vegan store (buys beans, sells faux meat), Jeweler (buys gems, sells jewelry), Ice Cream Parlor (buys milk), Cannery (buys vegetables) and so on. There could be a type of shop for every type of raw good there is. It would be a fun thing for a player with high skills to try out.