Well, if you can get these things for half price....buy it.
....I don't even know why you would hesitate.
Seriously, even if you bought them and didn't like them, you could make money reselling them to someone else.
AND if you get cold feet, forward your deal over to me, and I'll pick those things up for that price in a heartbeat.
BTW: I'm running the full Lsi line in my HT and I'm perfectly happy with them. I would see no reason why the new speakers wouldn't be worth their price tag, and an absolute steal at half-price....