One reason to keep a photo instead of deleting it would be the amazing things that an app can do to improve it. This fall I took this not very impressive photo. My class assignment was to use a variety of apps to change the image.
This is the recipe for my photo conversion:
Here is the original photo
Next I use the Snapseed, a free app for my iPad. I used HDR scape with filter strength 50.
Photogene is used for saturation boost using the preset Landscape.
Pic Art Frame was used to create a Polaroid look using Instant Frame 2
I continued to use Pic Art Show to create Light Leak 5 and Paint Drop Noise and Vignette.
In the final image I used Lens Flare to add yellow gel, scratches and red flare on top. This is part of an assignment to create an image in a specific style. In my opinion I like the image before the yellow gel was added.
What a difference a few quick apps make.