I have the opportunity to sell my original iPhone and then purchase a new 3G at no extra cost out of my pocket. Is it worth it? At first, I was all for it. Because am love my iPhone, it works fine and I want the latest and greatest. But, after thinking about it. The only big difference will be a bigger bill. I found out 3G plan is $10 more plus texts are not included, so $5 more for that. $15 more a month. All for GPS and 3G. Am I off here or what?