Ordering new speakers, need opinion(s).

[GBMidge7]

Hey all. I recently decided to purchase a couple new Polk RTi A7s as my fronts for my HT setup (The RTi A9s are just TOO big for me, as much as I love them). Either way, they are selling for $549 apiece from Amazon brand new with free shipping ($1100 pair, of course). However, I also found them for $965 for the pair brand new, factory sealed, free shipping, on eBay from a Top Rated Seller, "elite*audio*video". I have only bought a few things on eBay, but I have bought MANY things on Amazon, so my question is would a savings of a little under $150 be worth buying from someone other than Amazon? I checked out the seller best I could, and they seem completely legit and only have positive feedback. I know this isn't exactly a typical HT setup question, but I figured no better than to ask what people may think, considering how often we all buy this sort of stuff. Thanks in advance guys!