The prices on the M2.0 are pretty amazing. The trigger in the 2nd generation of M&P is not Apex level, or even Pro series level. They are (IMO) somewhere right between the 1st gen and Apex. Better for sure, but not night and day better.
It really comes down to money and preference. Unless your are saving some serious money on the 1st gen, I would go with the M2.0