Mark,
Thanks for super interesting thread - lots of good opinions. I too am in a situation similar to yours - nice portfolio in Colorado where 1) cash flow is moderate - not high (not close to BP recommended rules) like in other states and 2) feeling it impossible to grow to big scale (i.e. 100 units) like possible in other states with more multi, apartments, commercial, etc.
I agree with @Russell Braziloutlook/thoughts above. (And I know you know this) Colorado is a special appreciating market and in deploying cash out to invest in cash flow, you may lose your ability for the upside appreciation. I have owned homes in Indiana and Virginia (Washington DC area today) and experiencing single digit appreciation after 10 year periods. Thus, my experience is you can achieve 1 or 2% rules and good ROI cash flow but not achieve/expect Colorado appreciation. Agree that Colorado might have more runway yet. Overall like Russe's summary statement " But trading out because of the equity I think could be a mistake I think. Cash flow is how we pay our bills....but appreciation is how we really build wealth...and you do not need to buy for appreciation, but when it happens that shouldn't force you to redeploy."