I've been on both sides of the fence with this one. It seems to me the matched pair in this situation is memory that has been verified through additional testing. So if you want to take a chance, go without matched pairs, but if you thing nth degree of certainty is worth $50, go that rout.
<font color=blue>Only a place as big as the internet could be home to a hero as big as Crashman!</font color=blue>
<font color=red>Only a place as big as the internet could be home to an ego as large as Crashman's!</font color=red>