It is not often one reads a puff piece for a hot dog stand. Here’s one. A celebrity chef has parked a cart outside an exclusive hotel on Manhattan’s upper east side. He is selling $6 dogs with all the fixings. The reporter liked the one he ate better than a $4 dog purchased from a typical street venue. So, what is assuredly a publicity gimmick has paid off for the chef. The reason appears to be that the more expensive meat was better prepared in its bun with fillings. In other words, the chef is making sure the product meets his high standards. That is smart PR.