it is fun to screw with Circuit City. i saw an add a couple years back "buy one sub, get the other free" not a bad deal. but in the same flyer they also had the add "50% off all subwoofers". the disclaimers didn't say anything about combining sales. i tried it out on the clerk and i got 2 MTX 8" subs for $50. that's a $150 savings!
after almost 4 years, these subs still kick pretty hard.