Spartantech via eBay offers the refurbished 1st-generation Apple iPad 64GB WiFi + 3G AT&T Wireless Tablet, model no. MC497LL/A, for $135 with free shipping. That's $25 under our June mention of a new one and the best price we've ever seen for this model. (It's currently a price low for a refurb by $15.)
Note: A 90-day warranty applies, although it's unclear who supports it.