I have owned my own repair shop now for 2 years and recently started to save all of the parts I replaced for an art project. I have quite a bit of parts saved up and I just got a called from someone in Arizona wanting to buy all of my iPhone 4 & 4S screens that I have that are shattered. They are willing to pay $2 a piece but with the contingency that the LCDs are in working condition. Does anyone know exactly why they are doing this, and if so should I sell them or keep them? They did mention that once they have enough saved up they will be sending them off to a company in brazil that has a process of refurbishing them. I wouldn't want to sell them now and then later find out that for just a few bucks I could get them refurbish into good condition & working parts that I could then use to repair iPhones and make a bigger profit margin. Thank you for any information!