I love Boston, I grew up here, went to school here, work here. The transformation taking place over the last 10 years has been incredible. Disregard people who want things to never change. At least Boston lets people build, unlike in SF. If you aren't a total pussy you can buy in JP or Roxbury and get an affordable place [0]. Everyone wants to live like their rich, and if they can't all they do is bitch. Yes, rich people have money and therefore buy nice things. There is still plenty to go around.
[0] http://www.zillow.com/homes/for_sale/Roxbury-Boston-MA/54232...