Any advantage to purchasing multiple individual units in a single building?

[Scott Smith]

I have two units in two different buildings. Both are currently rented out long-term. I am looking to buy a third property in the same market. All other things being equal, is there any benefit to purchasing the third unit in one of the buildings where I already have something? Obviously I already know the building and that in and of itself is valuable, but is there anything else I'm not thinking of?