200,000 enrollees  flocked to plans sold by Blue Cross & Blue Shield of Illinois.  An additional 18,000 enrollees combined signed up for all other plans.  Now the rival insurers are weighing whether to lower prices and redouble their marketing efforts to be more competitive.

http://www.chicagobusiness.com/article/20140506/NEWS03/140509900/insurers-on-obamacare-exchange-must-adapt-to-compete-with-blue-cross