Newegg offers the refurbished Logitech Harmony Ultimate One Touchscreen Remote, model no. 915-000224, for $134.99 with free shipping. That's the best price we could find for a refurb by $14 and the lowest total price we've seen for this remote. (It's also $47 under our mention of a new one from two weeks ago.) It controls up to 15 IR devices and features a charging station, 50 favorite-channel icons, and a motion-sensing backlight.
A 90-day warranty applies, but it is unclear who backs it.