I disagree it is a waste of $, not the new pistol and transition at any rate. They can just keep good M9's in service until they wear out, replace the beat up ones. The 5 year program to figure out what they want was a waste perhaps. Just about every M9 I've seen or been issued has been beat to hell. I've only been issued crap holsters for them and have never used an issue holster, I buy my own. I have large hands, but the grip and trigger reach is too long for most, mag changes difficult and don't get me started on the stupid slide mounted safety/decocker!
The P320 is a huge step up. Smaller, lighter, better trigger (probably cost less), will fit more hands and yes, it still has a safety, but it is frame mounted and the neural pathway for disengaging it with your thumb is the same as for the M4. Now, I'd like to see some real emphasis placed on training as at the end of my career, having been issued M9's throughout and deployed twice, nobody in the Army ever gave me any training on it. (I make it a point to train as many soldiers as I can on the M9 if they are issued it).