I have a friend who bought a rowhome in deep South Philly a couple of years ago for $110k. Put about $50k of renovations in and now it's worth closer to $200k.
Philadelphia is a super-affordable city for rowhomes and small multiunit structures. Not only do we have incredible bones, but our infill is at the rowhome scale and you can definitely buy a shiny new rowhome for less than $500k. You also get our nice shiny 10-year property tax abatement on those, too.
Also, while Philadelphia isn't close to things like the Front Range, it's very much a misnomer that we don't have mountains nearby, or rugged terrain. For example, this...

manayunk.com

planphilly.com
...is entirely within the city, while this...

innathickoryrun.com

littleviews.com
...is only a day trip away.
I'm not saying living in Philly is all rainbows and unicorns -- but we do have our perks.