I was in Costco yesterday and came across this soundbar (HW-KM45C) for $170 that looks suspiciously like the Samsung HW-K450 selling most places for about $220.
It's a 300W soundbar with 6.5" wireless subwoofer and 2.1 channel surround. It connects wirelessly to compatible Samsung TVs or via optical or HDMI to any other TV. Overall I've been impressed with the sound coming from this setup for such a good price
Costco's retail price is listed as $249 but they're currently offering an $80 Instant rebate bringing the price down to $169.99.
I had just purchased the K450 the week prior from Best Buy and so I bought this one, took it home and compared the two. Features, looks, etc. appear to be the same. It sounds the same to me in limited use. And the one from Costco included an HDMI cable. Returned the K450 to Best Buy and am keeping the KM45C as they appear to be different model numbers of the same product.
Figured I'd share in case anyone was in the market for a soundbar.