Phil, you know that's a nearly endless discussion
but I really enjoy it.
I'm just thinking back to my old years in the 80's when I bought my first machine, the SR-16. It was my first choice between several others (Yamaha, Roland, Simmons, Akai) because of the *real* sounds! Plus it was affordable
Now I'm old, sitting in front of gadgets, outgear devices, QuadCores and Terabytes of harddisc space and talking about the *real* sounds again. I know that sounds a little bit arrogant, but I *was* on the search at that time and I *am* on it today.
My post was a bit exaggerated answer to the "GarageBand world" on the ipad which imho never could come close to the DM's and the software in my small database here. The sounds of the DM10 have the right punch, volume and transients for playing with e-pads and I admire the engineers at Alesis for getting all that sound into 128 MB.
But the software simulations we can buy today and we have to load on devices like the ipad all have a "most realistic" approach as a selling point. There are no onboard trigger circuits in a PC or touchpad, so the simulation has to calculate and compute with external signals/MIDI data, sample files and external I/O processes. That, among other parameters, makes the cake thus big.
And one of the other parameters is ambience. You could use artificial ambience with digital reverbs/eq's like on the DM10 and you could take the "real" thing with perfectly sampled room recordings, as you've described it. If you are trained to hear Neil's, Vinnie's or Simon's sound and play, you'll certainly hear the difference between the module and a 200 Gb sample library from them.
Maybe the best advice to sound addicts would be to take the module's possibilities and create an own, special sound with them. And this is really easy to achieve with the DM10.