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