Just thought I'd share a recent experience. Never under-estimate the detail you can extract from your photos!
Ducked outside for 5mins on 10 June and took this with my DSLR and normal tripod (x8 shots, 25sec each @ ISO 3200).
First image is a simple stack of all 8 photos (for all intents and purposes each individual photo looked virtually identical to this one, albeit with slightly more noise). The second image is the final processed version. Huge difference!
Cheers
Evan