Example:
Samsung 55 inch LED TV:
Best buy: $3329.99
ebay: $2649.99 w/ free shipping!!

bestbuy USA link: http://www.bestbuy.com/site/olspage.jsp?skuId=9234198&st=samsung+series+7+led+55&type=product&id=1218068137530
ebay link: http://cgi.ebay.ca/SAMSUNG-UN-55B7000-LED-1080P-120HZ-HDTV-UN55B7000-NEW_W0QQcmdZViewItemQQ_trksidZp3286Q2ec0Q2em14QQhashZitem3a4d03e15aQQitemZ250400203098QQptZTelevisionsQQsalenotsupported

they are pretty much the same tv!