It's an impressive piccy, but unless one wants to take a photo that will be enlarged to the size of a football field without losing detail, what is the point?
Most photo's get printed out at a max of A4 size, as that is the size most home printer go to.
My Girlfriends 4Mp camera prints out well at A4, when set on max res, min compression. Any more pixels just use up the memory card to no effect.
I read somwhere that a 35mm film at ISO 100 captures about as much detail as a 12Mp digital camera. At the time 12Mp was not about.
35mm film has been around for decades, and is for most as good as you need, most professional photogrephers used to use 35mm film. Enough said.