Here's a great article on the Thunder, their image/organizational culture, and potential future.
http://www.hoopsworld.com/Story.asp?STORY_ID=12756
Also, the internet and the expansion of the media means its not as big a deal to play in a huge market, as Smithian says, you get attention when you win. Every team has their own tv contracts for regional coverage, players market themselves much more than they used to. Market size doesn't matter as much anymore, everything is dependent on winning.