Re: Met a guy who really likes his E kit
I'm guessing he was purely an e-drum player, with little experience with how to actually play acoustic drums.
I've played the current top-of-the-line Roland kits, and they're great for what they are. However, you are most certainly nowhere close to being able to replicate the dynamic range and sonic possibilities of an acoustic drum with regards to rimshots, ghost notes, where you strike on the head, etc.
Acoustic and electronic drums are two distinctly different instruments, just like a grand piano and an electronic keyboard, and they both have their uses. E-drums have their obvious uses, for home practise, gigs where noise is an issue and for gigs where you really need a huge amount of sounds available to you (playing cheesy covers on a cruise liner or whatever). But for real, classic drum sounds, you simply can't play anything other than an acoustic kit.