ethernet ports on a ChromeBook will be nice to have. But WiFi is nearly everywhere and the ChromeBook is more of a on-the-go type of product. Depending on how the demand for a chromebook ethernet port is, we could see them on future chrome books.
Yeah, ethernet ports are nice if you don't have a wifi connection, but I've never been anywhere yet that doesn't have that option available. Maybe some older hotels might only have cabled internet hookup-- I'm kind of thinking that what Disney has?