That is excellent advice, Adam.
For my first two years of getting re-established in the West, I was going all over BC (Vancouver Island, Prince George, Ft. St. John, Dawson Creek, Merritt, Kamloops, Grand Forks, Vancouver, and some other forgotten towns) and even Calgary. I began to feel very scattered, and never did get to understand a given area, let alone a town, the way I should have before making a buying decision.
It was joining REIN that made me recognize that we should become specialists in an area, and not generalists. That is especially true if we are small investors, as most of us are. I now know my way around the town I picked. I know most of its advantages, some of its disadvantages. I know my contractors, etc. etc. The ROI on my time has increased substantially.
For those with staff who can handle the extra workload of expanding horizons, then going to and learning other areas becomes a reasonable choice. Thomas is an example of one who makes that strategy work well. I know of other REIN members who are doing the same thing.