I was going to post this a few days ago but I found the lack of reviews, and of online sales (including eBay) rather suspicious, as if it was discontinued due to issues. I might be wrong.
"a few days ago..... Awesome!"
I looked around and while i didnt see to many reviews
I did see the following link
http://www.plantronics.com/us/product/explorer-100that they are still behind the product and where you can purchase it at $50
ps. your on a roll today if you would have posted this deal it actually would have made the main site