This was sort of my take on it. However, it wouldn't cut back on scalping seeing as I could now resell to someone else, transfer it to them and there you go. So it's not really about if you need a paper stub or not, the paper stub is nothing but a password anyhow and could easily be on your cell or in your brain or a piece of paper you wrote it on.
For the record, I've been to four concert type events last year and only at one of those did the original payed up asses end up in the seats. All others, one or more people ended up unable to go and were replaced (sometimes at cost, sometimes for free) with other friends or acquaintances. So.. Yeah, paying for paper tickets were on the whole worth it saving more then I would have otherwise lost.