Is this a full 5.1 set or just the front floorstanding speakers?
For $30 you can't go wrong, keep the one you like, sell the other to someone else.
However, I wouldn't expect miracles from either of these speakers. Still, they are pretty good for the money.
I really don't think there is much anyone can say, beyond - you either like them or you don't and you are either willing to pay the price or you aren't.
Steve/bluewizard