I don't know that it is high tech jobs, or legal pot, but odd things are definitely happening in Denver. We just refinanced our house after less than two years, and the value shot up by almost $100k. Thankfully we bought when we did, but I don't know how my kids will afford to live here in the future. The townhomes they are building a block away will go from $350-$650k! Denver proper is mostly landlocked so prices will continue to rise.
Traffic is awful and getting worse. Getting up to the mountains to play on the weekend has become a real chore. We leave for skiing at 5:30am to beat the traffic up I70. Driving in or out of the city during rush hour is completely awful.
The bad traffic has brought the return of toll roads on most of the regional highways that weren't already tolled. Even the interstates have or are getting toll/express lanes now. Be prepared to pay up for your commute.
One bright spot - after decades of wrangling, our light rail network is finally being expanded out to serve much more of the metro area. Even the cheaper suburbs will have rail access to downtown in a couple of years. (Not Boulder, they hate you, sorry).
Please bring your hipster programmer selves here so I can continue to have someone local to work for and keep feeding my 401k until retirement. Then I can sell my house for a small fortune and move out of this crazy town.
Yours Truly, Generation X.