I play drums.
Still use Drummer when I track certain stuff. Not everyone has a set and a bunch of microphones available at all times.
Drummer is awesome.
There is nothing wrong w/ virtual drums, especially like you said not everyone has a bunch of mics not to mention proper pre-amps and most importantly a proper room. That said, dedicated programs like Addictive Drums, BFD and Superior Drummer are already out there and most engineers or producers will already have them. Is Drummer going to compete w/ them? I doubt it, reminds me of the Apple Maps boondoggle in a minor way. I recognize its a little different in that it has a bit of an A.I. to generate drums on the spot which is fine. My point about the cheesy personas is that belongs in Garage Band.....and the latest release of GB the other day just makes my point. Drummer was intended for GB from the get-go and to sell add-ons in the App store. Face it, Logic is looking more and more like Garage Band Pro. It might not be too far off from literally being that based on Apple's history.
The more that happens the more it will push away professionals in the audio business. Is that a bad thing? Not to Apple, they clearly don't care as long as they move more iDevices and Apps. Thats their prerogative. I think there is a genuine valid market for GB....I would just like to see Logic push real creative boundaries and not become more of a skeuomorphic toy than it is.
I may be alone on this issue within this forum but I know for a fact the developers for Logic (ie Emagic) would agree with me. In fact, they've been at odds w/ Apple for years over this and have been resisting becoming a high end GB. A battle they have clearly lost, probably the exact reason why Apple recently fired a huge part of their pro audio team.