the ebay link has much variety and it has buyer protection. If I were you I would buy from ebay, but if you are new buyer with less than 4-5 ratings, be ready to be treated lil differently, thats how ebay works. I had to convince them when I had issues and now I've over 100 positive feedbacks, I'm much valued ebayer than I was a year ago. Try to immerse yourself into ebay, it might be distasteful at first, but it's worth.
Tigerdirect/compusa, for some reason, they seem cheapo but they handle their stuffs very bad. Occurred to me twice-thrice, bought 2 monitors in the past, poorly packaged, torn , and then I bought laptop paying hefty amount over 1 grand, and its drive failed in 2 months, I had to get it through depot center. I'm not buying anything from Tigerdirect anymore, been 3 times and all negative experiences. I mostly do amazon and ebay. I do stop at other sites read reviews etc, but come back to amazon and ebay to make payments.
Hope you find phone of your liking soon :D