Why HDR? That's a very good question!
When I took the shots of the scenes, my aim wasn't just to shot for HDR, but bracketing my exposure allowed me to have the
option of producing a HDR variation.
Here's what the 'correctly' exposed single exposure version of the scene looked like:
There was a lot of contrast at the time of shooting and I felt that it would be interesting to use HDR to increase the dynamic range of the final images to recover some of the shadow and highlight detail that was otherwise lost.
So, the HDR composites haven't replaced the single exposure versions. I just wanted to have them in addition and also try my hand at HDR for the first time.
I wonder if because HDR is fairly new to the world of popular digital photography (Wikipedia tells me that the theory behind HDR has been around for a long time) people are more likely to question its use as opposed to questioning decisions made about other, more established types of processing?
It would be interesting to see whether or not something similar to the single exposure photo above prompts the question "Why didn't you use HDR?" in the future. Although, by then, our cameras may be able to capture the entire dynamic range of such a contrasty scene.