Tubes are shit.
The quality of the videos is mostly bad.
when you hit a link, instead of getting a video, you get another tube, or a virus.
Tubes are so spammy with ads. its hard to fap to a video with a huge flashing penis right next to it.
tube videos buffer during times of heavy traffic, are unwatchable.
they have lots of generic porn, but look for something very specific & your fucked.
the search functions are terrible, because the titles & descriptions of vids are terrible.
forget about watching tubes on mobile. joke unless you got the latest tech.
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Pay sites deliver.
you get a huge cache of content, far more then a DVD, for the price of a DVD.
no viruses. no spam ads sitting right next to your video.
downloaded videos do not buffer.
you can watch your downloaded clips when your internet connection is down.
only paysites provide micro-niche. Some producers even respond to customer requests & create custom footage.