Not so quick wrote:
Easy to answer:
They are, only if you feel like printing the photos
(or getting them printed) though. More Pixels
per picture = more dots per inch possible when
printing = higher "print resolution" = smoother
You can get the same picture printed on a larger
sheet at the same quality than before.
Easy as well: A drastic increase in sales lead to
a larger production rate. -> They can cover their
research and other costs more easily and therfore
can afford to drop the prices.
Depending on what you want to do: Yes. It's about
the same as the comparison as compact camera to
SLR in the og camera sector, I'd say.
Hope that helped you. Mathias.