DCA is notorious for their poor marketing practices and high cost training. I wouldn't believe a word you hear from DCA recruiters or management. They are blowing smoke up your butt to get you to attend their program. ATP does the same but not quite as bad.

You can learn more about the regional industry at the forums, here, but you'll have to pick your way through a lot of senseless bickering to find the occasional useful post. I'd recommend Jetcareers.com - Welcome as an additional resource on flight training and the airline biz.