A lot of heavy-hitters on the straight side of the business who are very well respected all say that videos kill conversions to paysites.
I guess a perfect example is the tube phenomenon, over the past 2 years conversion ratios have dropped significantly... Because surfers can now get access to millions upon millions of movie files for free.
You could always run a test, build two tours, one with video, one without and send the same amount and quality of traffic to both, i guarantee you that you will see a decline in sales on the tour with videos on it when compared to the non-video tour.
Regards,
Lee
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