Actually Vimeo Plus lets you do "hidden" videos as well. You choose "hide from Vimeo" in Privacy settings. It's great for uploading lectures you need students to watch but don't want the general public to know exists.
Thanks very much for that update. The lack of Youtube-style unlisted videos had been a contentious issue for Vimeo Plus users a long time. It is good to see they added this feature; I don't know when they did. I think at one time you could do this but it required viewers to register a Vimeo account; that is no longer required so it appears to be unlisted like Youtube has.
...And optical media'so death is greatly exaggerated. While tech savvy folk have bypassed it, dvds in particular are demanded as archives or final product (sadly Blurays haven't caught on so there's still a major loss of quality). I'm still making a half dozen a month for clients (and even when I throw in a HD digital file, always have to explain what it is and why it won't play on their DVD player)
We have to do what clients want but oftentimes they request a DVD because they haven't been informed of the alternatives. Also since virtually all production has shifted to HD, DVD is throwing away 5/6ths of the pixels.
Unfortunately there is no exact streaming equivalent to DVD which combines wide availability, menus and splash screen, and well-understood production & mastering. However with that comes a big hassle, especially considering the added difficulty of label printing, case printing, proofing, issues with aspect ratio, interlacing, risk of unnoticed problems being mass produced, inability to tweak after production run is committed, etc.
The hardest user segment are those who want to watch it in a family-room TV environment. Despite AppleTV, Chromecast, Roku, smart TVs, etc, penetration of streaming IP video to TVs still has a way to go.
Yet another problem is fragmentation of distribution channels for streaming video, plus inaccessibility to small (or even medium-sized) video producers. I think only Roku has no-cost private channels available to small content producers. Of course AppleTV clients can stream any video URL via AirPlay, but it's an additional step lots of people don't understand.
However most newer smart TVs have a USB slot where you can plug in a thumb drive. USB sticks in bulk quantity are cheaper than a DVD, case and duplication costs. You can have the USB stick decoratively printed, although this obviously doesn't equal the presentation quality of a DVD.