is a backup camera actually useful?

[SactoSteve]

I am pondering the utility of a backup camera. Posting specifically to the travel trailer section for responses unique to "our" backing situations. I don't think I particularly care about seeing behind the trailer while in transit?

I can see where knowing how closely you are approaching an obstacle behind you, during backing, would be useful, but is it also helpful when starting the maneuver of backing into a "spot"? Also, I can't imagine it would be of any use on the "blind side" during backing and a spotter would probably still be necessary. and I'm sure there are many things I'm not currently thinking of.

Looking for opinions and recommendations regarding the value of using a backup camera from folks with experience.

Thanks,
- steve