The most obvious aspect of real estate investing is cash-on-cash return. So, if this is the only metric you track, then it may seem as if your portfolio is performing worse than it actually is. “There are many other dimensions that are not apparent necessarily to investors that they realize later,” Jason said. “So if they just look at it from a cash-on-cash perspective, and if they have a couple of bad months, if they have a vacancy, if they have a big maintenance issues or a tenant that trashed the property issue, and they gotta spend a bunch of money, they wouldn’t be evaluating holistically.”