Should i buy a new iPhone 4s or just get a 2nd hand iPhone 4??? Should i get iPhone 4 or iPhone 4S? iPhone 4 16GB 2nd hand $650 $20 a month plan 20min 1000 Texts 200MB of data iPhone 4S NEW $650 $45 a month plan 100 Min 2500 Texts 250Mb data I dont know if I should spend $45 a month on a plan. Note all prices are NZD is $45 to much a month for a plan???