Each size/color varies in price, but I was able to pick up a green K'tan in XS for $28.77 (normal price is ~$50). There is also currently a 20% off coupon on these on Amazon, you just have to click on "Special Offers Available" under the price, then click on the "Clip Coupon" link and it shows up when you check out.
CamelCamelCamel says it's the best price it's ever been on Amazon, and the best price for a 3rd party store is $25 + whatever shipping. (Albeit this is for the green XS, other color/size prices vary.)
Re: PSA: Baby K'tan on sale on Amazon