Update. The price is now $149.99 after an instant rebate. Good until 8/13/12.
I'm surprised to see it in a mainstream store like Costco. Could it be the US is finally joining the community of nations with clean butts? I never thought it would happen in my lifetime.
This seat normally sells for $499. Even on ebay it, goes for $349. I hear all the doors slamming from the ebay resellers rushing out to buy 20 or 30 of these. It's $199 at Costco. This was not there last week. This is actually pretty full featured. It even has a dryer. You should not need TP anymore with this except during blackouts. It doesn't have a negative pressure carbon filtration system. It's also made in Korea and not in Japan. Thus the low MSRP at $499. Having said that, with all it's features, it's a white hot deal at $199 especially with the godlike costco warranty.
Here's the manufacturer's link for reference.