Originally posted by @Thomas S.:
@John Woodrich
Investing is never about perception it is about reality. The reality is that by reducing ROI you are reducing the potential value of your money. Dead equity is not investing, it is hoarding. I have said it before and I will say it again, if you want to hoard cash that is fine but do not pretend that buying cash flow and increasing cash flow are the same thing.....they are not.
Thomas, I think you make a good point about always building in opportunity cost and comparing what you COULD be doing when you make a decision like paying off debt. But the only thing I see missing from this ROI equation is risk. Risk adjusted returns are the bottom line so you can compare apples with apples.
Yes, there is opportunity cost to basically purchase your own debt at 5% when you could invest it elsewhere at 10%. But by doing that you're dramatically decreasing you risk profile. If rents had cratered in 2008 - 2010, for example, the free & clear people who wasted their money on sub-optimal returns would be the only ones still standing. You might have to sell those income funds (likely at a loss) to pay off your upside down debts or fund negative cash flow on properties.
And the other thing not in the equation is timing and life goals. It may make sense to always try to optimize returns and build the biggest pile of wealth in the end. But at some point people reach enough. And peace of mind, less complication, less risk, less volatility all matter. Getting those in exchange for lower returns can make sense. So, it's hard to say something is suboptimal without all of that context.
Awesome discussion!