In a recent thread which I haven't been able to locate a correspondent reported that he had purchased an earlier model hp 33s with the bad decimal point for $41 in the hope of being to return it to HP in exchange for a later model.
On a trip to Florida las week I once again checked the availability of calculators at Wal-Marts along the way. I found only two hp 33s machines. They were in the Wal-Mart in Madison, Georgia. The serial numbers started with 527 and 541. The price was $41. I tried to bargain because only a few weeks earlier I had purchased a 524 unit in Perry, Georgia (only a hundred miles down the road) for $21. Wal-Mart wasn't having any of that!