A guy in Omaha told me my $800 truck bed trailer ad made him "scroll right past"
Said my 9 blurry photos from across the street looked like a crime scene, so I relisted with one clean shot of the tailgate and sold it in 2 days. Do you get more replies from fewer photos or does a full album still win?
Read a thing from some reseller blog that said the magic number is around 5 to 8 photos for most stuff. Enough to show the flaws and the good parts without making people tap through a slideshow. A single solid photo works when the item is simple and the price is low, like your trailer. Too many pics and people start hunting for problems that may not even be there.