Fluctuating Galaxy S4 Black Friday Pricing Says Maybe… Today, we’ve got a serious release date rumor that’s for you. Having made its way around the mill only for a day or so, we’re not sure if this will grow legs or not, but we really, really hope it does. Does Galaxy S4 Black Friday Price Mean S5 is on the Way? RadioShack is selling the Galaxy S4 at $50. We checked to be sure, and it’s true. Galaxy S4 is available at $49 starting November 28. Currently, though, those who want a Galaxy S4 can use the Trade & Save program to buy it – and it might wind up a bit cheaper than buying it on black Friday. There’s a catch, though. Calling it Trade & Save, RadioShack requires those who want to get the lowered pricing to bring in a smartphone that works and trade it for the Galaxy S4 and depending on the trade’s condition, you could pay anything from $0 to $99. Testing the deal, the Trade & Save offered us $71.45 towards a purchase for a Sprint Galaxy S3 32 GB that powers up, is in perfect working condition, and is complete with charger. However,…