no paypal
no foreign mailing
buyer pays postage
pricing row-1 chip-1--$4/chip-2-$4/ chip-3-$4/chip-4--$7/chip-5--$4
--------------2-------1--$4/------2-$2/chip-3-$4/------4-$4/-------5--$7
--------------3-------1--$7/------2$7/-------3-$30/----4--$4-------5--$4
========4------1-$3/-------2--$7