In reply to John Clinch (Ampthill):
> Exactly Amazon don't care what camera you buy. But they do need a way of persuading you that to buy a more expensive one or that a new one is better than your old one.
I share with you the the feeling that the general push of messaging (at DPReview or elsewhere) is towards 'upgrading', while we don't really need anything beyond a basic film camera (I don't think we get any more subjective satisfaction), but that's in line with other technological trends, and see next point.
> I can see from where I'm sat 18" by 12" prints from my 6Mp D70s. Most are highly manipulated B&W conversions but show great detail. But DPR will say "16Mp starting to seem dated". Rather than can produce stunning 36" by 24" prints
I completely agree with you that that sort of camera will produce very satisfying prints, but if we are talking about differences in image quality between already excellent cameras, I maintain that the DPReview tool is a good one, even if I'm happy to agree with you that modern cameras for a few hundred pounds are all pretty much good enough. Also, perhaps there is heterogeneity of opinion at DPReview, but in an article specifically addressing the 'megapixel' question (
https://www.dpreview.com/articles/1313669123/how-many-megapixels ), their summary words were 'for most purposes 3MP is plenty, but you might want to shoot at around 8MP for the crispest possible details.'.
> Out of interest why do you think Amazon bought DPreview?
No doubt because they know it will help their sales, but that is consistent with their belief that their sales are satisfying genuine needs (or at least well-founded desires), and those are things we are taking to account in this discussion in trying to help Mr Cook with his decision.