I got a couple a few months back at Staple for $39 (which was the cheapest I had seen before). They had the handle and a swival base (also were the 13 watt kind). I don't think it was ever in the paper ad, just happened to be in the store and walked by and saw them.
Bj's is a big warehouse wholesale store like Sam's Club, or Costco, etc. Their website is just
www.bjs.com but from their pulldown menu for locations, they're only located on the east coast.