I've purchased two used N810 in the past months, one for $30usd plus s/h (ebay) w/ box and all accessories/4gb sd--and another for $80usd (Amazon) plus s/h w/ box and all accessories except car mount.

Both times the sellers were convinced the screen was pristine, and even my $80 N810, while in great shape, had a light scratch. My $30 N810 has numerous tiny scratches.

Both screens look unscratched when lit, but it really is buyer-beware. I think I would pay the money for NIB N810.

Jake