LAS VEGAS — The throngs at this year’s Consumer Electronics Show, which ended Sunday, jammed this city’s streets, hotels and cellular networks. At times it seemed it might have been easier to stay at home and read about it on the Web. But that might have meant missing out on an unexpected discovery or the buzz of something big. Technology editors and reporters of The New York Times who attended share snippets from their notebooks below. Complete coverage of the show is at nytimes.com/gadgetwise.