Even at $600, that's a really nice launch price (maybe not for what the phone is today, but compared to other launches). I remember paying $800+ for the original N95 when it first came out, and over $600 for the N95-3, N95-4, and even the N80, and that was after they had been out for a few months.
Nokia's still prevalent obstacle is winning people over from phones that can be had for under $300 with a contract. Usually anything over $400 that can fit in your pocket scares new customers away pretty easily.