yeah i'll agree. they're ok. they've been around for a few years now so you should know how old they are for one. they are mtx's second line. they made the 8000s and the 6000s. this is circuit city type stuff so they can't be too expensive retail.
if the box is built real well and is to spec i guess its worth 100 bucks but its not a super steal price. theres lots of subs nowadays you can buy for 50ish bucks in the same category that are new. but boxes can be just as expensive.
I wouldn't buy them if I was in the market for subs unless I NEEDED a system and had very little cash. Does that help characterize the situation for you? They will bump, they aren't competition subs, and you won't get laughed at for having them. Good 'enuf?