I have a launch model Black iPhone 4 32GB (Arrived in early August 2010) and it's been used every day until last month when I upgraded to a 4s. It looks great, has been in a case nearly its entire life and has no scratches. But it does have a issue with the home button where it will not press sometimes or takes multiple times to act like I pressed it once. It is an ATT model and I plan on having it unlocked through ATT. About how much should I ask for it when I list it on eBay or ask friends? Would $350 be too much? In the description i'll make sure to include how to enable assistive touch.