Honestly, the whole "just make videos" advice drives me mad. Everyone throws it around like we've got infinite time and budget to physically unbox every product under the sun. From my experience running affiliate funnels alongside retention campaigns, the real product vs screen share debate comes down to trust signals - not just what's easier.
Screen-sharing the Amazon page works fine for informational content (think "best budget laptops" comparisons), but for anything tactile - apparel, skincare, gadgets - you'll kill conversion without showing the actual item. People want to see texture, scale, how it moves. An unboxing gives them that sensory validation. A screen share just makes them feel like they're watching an ad.
That said, if acquiring every product isn't feasible (and let's be real, it rarely is), you can cheat a bit: borrow from a friend, use stock footage with a disclaimer, or focus on "research" style videos where you compare listings rather than demonstrate usage. Just know your click-throughs will suffer for it. Amazon's policy doesn't explicitly ban screen shares, but the algorithm rewards watch time and click-throughs - and trust drives both.
Bottom line: real product is ideal for anything where physical experience matters. Screen share is fine for data-heavy, non-tactile niches. Test both, track your conversion rate, and let the numbers decide.