Manhattan Products via eBay offers the Unlocked Samsung Galaxy S4 16GB GSM 3G Android Smartphone in Black Mist, model no. GT-i9500, for $429.99 with free shipping. That's $50 under our mention from four weeks ago and the lowest total price we've seen for the international version. (It's also a current price low by $98.) This quad-band GSM phone features a 5" 1080x1920 touchscreen Super AMOLED, Samsung Exynos 5 8-core chipset (international version), 2GB RAM, 16GB memory, 13-megapixel rear camera, 2-megapixel front camera, 1080p video recording, Bluetooth 4.0, WiFi, and Android 4.2.2 (Jelly Bean) OS.
You don't even need an AARP membership card to qualify for the "senior" discounts at these retailers.