Picture previews I can do with or with out, but I always think video previews are a must. To me it gives the buyer a confirmation that it's going to be a good video and not just buying out of curiosity.
Pictures can be grabbed from that "perfect" moment to make the video seem much more grand than it actually is.
For me, no preview = no purchase. Pix don't count.
Would you rather the site have a video preview, good pictures?
If a site stopped having picture previews or video previews, does that discourage the consumer?
