I was checking online prices and if the Xikar promo is 20% off their list price, you can beat that now from both Neptune and Famous using the BOTL discount codes.
Examples: The Xikar XO cutter list price is $119.99. Neptune, on their web site is listed as $101.95. Using the 15% BOTL discount it nets for $86.66. Famous would sell it to you, net BOTL discount, for $89.63.