I noticed that settlers just love the radio and will collect around an industrial plot with one instead of a "bar" which dosent have. However, in Sanctuary they love to hang behind the house with the workshop so this is where I built a bar... but as dumb as they are, they din't fall for it and most of the time they just walk aimlessly like Concord inhabitants or worst, stay there immobile. This is why I stay away from industrials plots which have a radio.I've had that since my first time playing SS2. For whatever reason the settlers and visitors in Sanctuary will mostly collect around one particular plot. Usually an industrial plot, and usually one of the internal type. Not everyone, usually about 60-70% or so, but most. Starlight too, but there it's one of the commercial plots. At Sunshine Tidings and Abernathy it's the same - majority around one particular commercial plot. Haven't really noticed it at any of the other settlements.