Hey Canneton, welcome to bp man! Yes Denver process are high, however the price is driven by demand, and that's not showing signs of slowing anytime soon. The popularity of the city is overflowing into the surrounding areas and causing rents all over to skyrocket. With mortgage rates as low as they are, you can enjoy nice cash flows, low mortgage payment and high rents. An example: I have a property closing in Parker on Wednesday for a young client who was out priced from buying closer to Denver. He doesn't mind living in the subarbs because he gets more bang for his buck, he can rent out one of his rooms to cover his mortgage payment - high rents, and he can jump on the light rail for an easy commute to work in the city. I'm seeing so many millennials do this because of these reasons. The light rail has made the suburbs an easy commute into the City and more desirable to the millennial crowd.
And in your case, since you're in it to enjoy the cash flow, so long term, even if there does come a market dip in the future, you can ride it out. Historically, real estate has increased about 4% annually. Denver area has been nice recently with over 10% annual increases. Don't shy away from Denver area investments, just need to find the right deal for you.