Let us place a tribute master in our house. Also banker, parcel guy, etc. Dont see a good reason why they should be guild hall only.
The big problem with Hyerdel is he can only be placed IN the house. Would be great if he could be placed in the yard.
With the exception of special items that are designed for a guild (some trophies/teleporters) I'd like to see the rest of the items/people able to be placed in a house. I can see bankers, vendors, generic merchants being useful along with the tradeskill containers.