i bought mine at amazon, 12 months no interest. but now i want 8gb and they don't carry it. neither does Best buy which is offering me 10 percent off (plus tax, no tax at amazon) and 18 months interest free. i spoke to amazon today and they won't match the best buy savings which amounts to about $45. it seems only b&h has the 8gb base 13" but they only have a six month no interest. i have another two weeks before i have to return mine to amazon so i'll see if best buy comes up with the 8gb version. apple of course has it and they have 12 months but you have to pay FULL price PLUS tax. not worth it.