This deal has ended.
Update: The price has gone up $10 in cerise. Amazon still has the Plantronics Discovery 925 Bluetooth Headset (purple or cerise) on sale for only $39.99, matching the all-time low (you may need to find Amazon.com's listing for the cerise model on the right under the column "More Buying Choices"). I have one of these and love it -- the best Bluetooth headset I've used. It's tiny, plus the case has a battery built into it so it charges when you're on the go. Shipping is free with no sales tax (except KS, KY, ND, NY, WA).