As one of its daily deals, A4C offers the refurbished Apple AirPort Extreme 802.11ac Wireless Base Station, model no. ME918LL/A, for $99.99 with free shipping. That's $29 under our refurb mention from a month ago and the lowest total price we've seen for one in any condition. (It's also $50 below the best price we could find for a new one.) It uses 802.11ac WiFi technology, which offers up to 40% faster transmissions than 802.11n. Deal ends today.
A 90-day A4C warranty applies.
Looking for a new unit? As we listed earlier today, Adorama offers it new for $149.99 after rebate with free shipping, which is still ongoing.