I'm of the opinion that nobody really needs anything over 5mp and the ones with more are overkill for marketing purposes.
Some of us like to stay up-to-date and take advantage of the new technology that's available and that's pretty much what this last post is all about.
The more MP, the greater the magnification of the picture and, still see a picture and not just dots. There are many reasons why higher MP
make sense.
If you're just shooting local scenery, maybe what you have is fine even if it's not capable of taking advantage of the product I describe and can't wait to put to use.
3.2 mp is more than sufficient for prints up to 8 X 10 and how many people ever print anything larger than that? The size of the file gets exponentially larger with a higher mp count and your software has to downsize it even more to display the whole thing. Even 3.2 mp pictures are ridiculously huge at the full resolution on a monitor screen.