What is it about VUDU that makes you think it will have more longevity than services like iTunes or Amazon Instant Video? Ultraviolet? I buy almost all of my digital movies and TV from Amazon because I don't see them going away anytime soon. Of course I redeem all of my UV codes on VUDU but that's only because there aren't really any better options.
Well obviously there's no guarantee of longevity for anyone really. For VUDU specifically though, they actually have one of the longest legacies. It was in development basically at the same time is iTunes video, but was targeted to a far higher A/V quality. It launched in 2007.
Since then they've continued to be at the bleeding edge of tech and features, and given WalMart bought them up ... it seems unlikely they're going anywhere. Numerous video services have come and gone since they started, they've kept chugging along.
I haven't seen marketshare numbers in a while, but I know at least a few years ago VUDU was doing quite well. While of course iTunes and now Amazon have a big chunk of the purchase / rental market, VUDU has historically had a nice profitable share unlike the numerous offerings that have either come and gone or are in their infancy (BlockBuster, Red Box, several offerings from Microsoft and Sony, M-Go). It's the Energizer Bunny of video. Basically the marketshare graphs would typically show iTunes, Amazon, Vudu, and then 'other' lol.
tbh it doesn't matter what site you redeem your UV movie on, it will stream from any of them. That's the point of UV
While true, where you redeem and view very much does matter in terms of audio / video quality. You are utilizing their servers and their encodes, which is precisely why all my UV and DisneyAnywhere viewing is done via VUDU (and why any non UV purchases are made through them).