it's hard to say, i mean, i was just naming a price that i think an average person would pay. if it's someone that has no idea what they are buying, then yeah, you could possibly get $600 out of it. what gpu does the 5,5 have? i mean, i doubt anyone wil pay over $450 or so for a 2.26ghz/1gb ram/320gb hdd, they would most likely be buying it with the intentions of upgrading at least the ram. the gpu could play a big part in the price though.