... that's one of my personal reasons why I avoid e-tickets (with any airline, for me UA, LH, SR) like the pest (it happened that I lost my credit card and it was replaced with a different number!)

other reasons: [*]my flights (out of Switzerland) are only international, and if they include long-haule-flight-segments they start with a LH-flight (some times on LH-flight numbers some times as a UA-code-share-flight-number) from ZRH to a connecting hub in Germany (FRA, DUS, MUC for connecting UA-flights) or Scandinavia (SK: CPH) or others.

The Swissport-agents (=SR daughter company) serving the StarAlliance check-in-counter in ZRH (to make it even more complicated that Swissport=SR run StarAlliance counter is in the responsability of Lufthansa ...) can't get the correct UA-e-ticket-informations on their (LH-system-) screen and that means time-loss in ZRH at check-in, problems with luggage to be checked through, no (change of) seat-assignements (often I might want an emergency-row-seat) for connecting-flights, no-through-boarding-passes to final UA-destination, time loss (sometimes very nasty queing in FRA on short connecting flights), airport-duty-free-shopping-problems. So much for seamless-Alliance travelling ...

Sometimes, on the phone, I forget to ask for a paper-ticket, and it is really time-consuming to ask afterwards for a paper-version - even more if I bought the tickets with my credit-card for third parties - mostly for Gisela, or like yesterday for kokonutz (LHR-DUS-LHR on LH) - I hope that one will not turn out to be an e-ticket

or try once getting through airport-security to passport-controle to LH without paper-ticket in Caire, Egypt (I lost a full 90 minutes last time!).