Great question. Actually we are exploring both options. We're finding that some retailers prefer for the former, some the latter.

Hundreds, possibly thousands. Most retailers won't want videos for all their SKUs - only the ones for which a video can help the shopper decide whether to buy.

Yes, retailers need more than just hosting. They need help creating the videos (we offer templates, editing tools and professional services). They need the video to be inserted without breaking page layout (we make it easy to add play buttons that expand and play the video in a lightbox). They need video a/b testing (ways to re-edit the video based on analytics). Also Video SEO is technical for product pages, and not done well. We help with that too.

Thanks. Cold 'walking'. We walked into local stores and pitched. It often took a bit of time to get to the decision maker, but once we did they were very enthusiastic.