Sure, but based on historical events with housing in "great" areas, this can and does happen. If you buy right before a bubble, it can even happen sooner -- in a couple years. A 6% fund is not going to even have the chance to do that.
> In markets with a lot of excess inventory, some landlords can't find tenants.
A given, per the article, is a "great" area. Great areas are always in demand. I have not yet lived in an area that lacked for tenants.