Some of the newer electronic kits are indeed sounding quite good. If you want performances that sound for sound and riff for riff a duplicate of what you played last time(assuming ones skills match), the electronic kit can give you that. And assuming you have a capable sound system and engineer, what the audience hears can be very pleasant and musical. However(yeah, you knew this was comin'), the varying surfaces available to hit on an acoustic drumset often can envoke a whole range of dynamics and emotional content unavailable with an electronic kit.
I'm not saying one is better than the other, just different. I've seen a demo of a video that Thomas Lang made where he uses a custom Roland V-drum kit that is quite frankly amazing. But it is quite sterile in its dynamics no matter how talented a player he is. Just my two cents worth. Of course(adjusting for inflation) I doubt it's even worth two cents these days.
