When Newegg first started doing those open box deals, you could often get a complete motherboard with all retail accessories for super cheap. That was maybe a year or so ago. Since then, they have been selling just the bare motherboard, sometimes accessories, but don't count on it.
It becomes a major problem when you get a board with no I/O plate, because few motherboards use a standard layout these days. So then yo uhave to go to the manufacturer for a $10 I/O plate, and heck, maybe some special raid software, cd, cables. now you're back up to the cost of retail.
Long story short, I'll pass. Unless someone posts here that Newegg has actually started selling with accessories again.