FWIW microcenter has the x660 for $119
http://www.microcenter.com/single_pr...uct_id=0352230
kinda wish I had found that before I ordered this one even though the differences may be minor.
[Edit] I had seen that one a few weeks ago, but with shipping, it's about $16 more. Honestly, I think you'll be very happy with the x650, as the differences are very minor.
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