That does look slick, but it also adds bulk. $150 is indeed kind of steep.
I'd go with a Logitech unit. That way, I can keep the thinness of the Samsung folio cover that I already bought for daily use, and then have a keyboard that I can use with other devices as well. Bonus is that it costs less than half of the Samsung.
It's also kind of annoying how they seem to be releasing the accessories in piecemeal fashion. I know they wanted to get the Tab to market as quickly as possible, but it would've been nice to have the full complement of accessories to choose from from the start. Some people who already dropped $60 on the case might be peeved that this new option is available. Even if you have plenty of disposable cash, it becomes kind of hard to justify sinking so much into a device that you'll probably just replace next year.