The 3GB RAM shipped in the new single processor Mac Pro's seems inadequate, or at the very most, a spare minimum. I can think of few users who would find it enough. The set up feels intentionally designed to push buyers towards Apple's overpriced RAM. For most buyers, however, they will avoid Apple and simply buy their RAM elsewhere and toss the original 3GB (or tuck it away, to inevitably toss it later.) This is probably not news to you, but I find it distastefully wasteful. Those original RAM modules become more unnecessary waste. I'd frankly prefer an option to have mine ship with no RAM.