Hi Kat,
I'm pretty sure this large Kate Spade diaper bag is authentic, but I'd love your opinion:
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=120584185661&ssPageName=STRK:MEWAX:IT
Also, do you know if this style is still available in stores? I've only seen them on eBay, but since many of the postings are NWT, I would think they are probably purchased somewhat recently.
Also, generally speaking, is is a safe to assume that if tags are still on a bag Kate Spade bag, it is real? Or can those be faked too?
Thanks!
This is authentic. I have no idea if it is available in stores. Although obviously I still authenticate KS bags, and generally keep up with the collections online, I haven't actually shopped for a Kate Spade bag in quite some time.

I've not seen a fake of the CURRENT price tag, but that doesn't mean it can't happen. It is still wise to seek authentication. I have seen all kinds of egregious things over the past 10 years. Obviously you're not going to see this happen as you would with Louis Vuitton, but it can. Back in 1999-01 when the "care card" was just a piece of white card stock with print on the front and back, those were faked with some regularity.