Originally Posted by Morrissey
Let's be honest here: the main reason why people preferred the paper certs is that the gate agents would sometimes "forget" to collect them. This is the 21st century, and I for one don't want to have to carry around a piece of paper which could easily be lost or forgotten at home.
What about gifting a SWU to another person? The "upgrade others online" method seems to fail from time to time, in which case a paper SWU may be easier to give.