[Porsche-O-Phile]

Correct. Plaster is a longer install but is harder and more permanent. Drywall is simpler to install and is more easily removed/modified. Is this a damp/moist area? If so, I'd recommend plaster. If not, it's your call. Another consideration is electrical, phone and/or plumbing. If you have recessed j-boxes, make sure they're exactly where you want them before you lath and plaster the wall (should you go the plaster route). It's a pain in the butt to cut in new ones later, and access to the interior of the wall to repair a pipe leak or anything like that is very difficult. Normally with plaster walls, surface-mounted conduit is used, simply because it's simpler than cutting through the plaster and lath.

Both are recyclable. Personally I like plaster as it is far more durable and gives better sound attenuating characteristics). However a gypsum board wall can be detailed to be plenty durable (using wonderboard up to a height of 48" for example) and with excellent STC ratings. It all comes down to proper detailing.

So the short answer is it's your choice. For simple, I'd go with the gypsum board. For durable and permanent I'd go with plaster. Personally I like the aesthetic of plaster more, but that's just me. There's absolutely nothing wrong with gyp. Both give good fire resistance ratings also (again, depending on details...)