14 IPHONE HELPP MONEYYY IPHONE PRBLEM?

hi guys i am jack and i really want a iphone i bought a fake 1 of ebay but they are really bad . i need to get a 3g 8gb appplee iphone black and i need help with how do i get the money for it i have 50 already to go towards it but thats it i might get 1 of ebay for lke 150 or somwthing thats how much some of them now are ON EBAY but i need help on if there is any other places to get iphones cheep or to get money online i dont no or if you think the ihpone isnet very good plezz tell me 10 points 2 first good question