One "mistake" I've probably made in my investing journey is buying only higher yielding places with lower CG prospects. Meanwhile, my PPOR (in a metro area) far outperformed all my IPs due to CG. If you have the cashflow to support buying in a metro area I would consider that in addition to this kind of property as it might actually get you to your goals quicker (being able to develop your other site)...
I agree. Capital growth is the most important thing.