person A: My friend bought a house in a very cheap market town and 6 months later a very walthy company opened an enormous regional HQ there. His house has doubled in price and he has paid off all his debt and now is very well off. I'm pleased for him but envy a little luck
person B: That's amazing and a very quick profit!  I'm a little bit jealous myself.  
person A: Yeah. It is one of those strange moments where a place can go from being a place in the cheapest third of housing markets to being in the most expensive third in just a couple years!
person B: It's amazing the effect something so seemingly small_comma_ like the company headquarters opening_comma_ can effect an entire town like that