I think it would be really cool if we could have tier 5 stations in our houses. Make it so that they are only available for tier 4 houses, and you need to have X aptitude level to have that station in your house. In order to make that station, you also need X aptitude level in furnishing. Have like a cooldown for like 6 hours or something.
Limit the number of things that can be crafted every 6 hours or something. Whats that destroying? I doubt everyone just going to give up on getting stations upgraded to tier 5 or give up on invasions because of it.