Unfortunately, at accident scenes, it's a common enough statement ..."looking at my cell phone had nothing to do with hitting that pedestrian that suddenly JUMPED out in front of me!" While I can see the benefit of having a backup camera when backing up a trailer I personally don't feel the need for a rear view camera while driving. What happens at night when all those headlights behind you are pointing at your camera? I know with my backup camera on my car, the lens has to adjust for lights hitting it so there's a bit of a lag. I know many people with backup camera's that find them useless in heavy rains or cold temperatures as the image blurs. Then again, I imagine if you spent the money on a quality product, there would be fixes for many of these issues. Of course it would give you a better look at the face of the guy who's tailgating you if you're the retaliatory type but in the same vein, you might be tempted to spend a little too much time looking closely at the young blonde driving behind you!
I can see one benefit because once someone gets really close to the rear of the trailer, you'd lose sight of them if you're only using mirrors. Proper use of mirrors allows you to safely see approaching vehicles at a glance and by occasionally glancing to the left and the right, you should have a pretty good idea of where everything is. Did you know that many consumer groups are trying to mandate backup camera's as required safety equipment on all new vehicles. This would be a good thing as long as people remember they still have to check their mirrors before proceeding.
Personally, I don't see the need to see where I've been ... I want to see where I'm going but that's me. We are new to trailering so certainly don't have the road experience that many on this forum can offer. I think we can agree that
no-one knows your needs better than you so if you think you need it, I think you'll be happy with it. If you have a navigator with you, all the better because they CAN watch it without distraction. After all, I remember many friends who thought having GPS ability in a vehicle was a ridiculous expense (MEN) - now they couldn't live without it. (And their wives are happy because otherwise their husband's would drive around in circles before asking for directions!)
Hopefully after you've had the use of it for some travels, you'll be able to give the forum a review on it. Congratulations on your new purchase and welcome to the Escape family.