keeping accurate score (Score 1)

When we say sequence a 'genome' for $1k, $10k, etc., we need to specify what constitutes "done". If 100% completion (no gaps) is the bar, then even the initial sequencing of the first genome (for $1bn) isn't done yet. But if the goal is to, say, learn the sequences of the most informative parts of the genome (common variants, say) then we are already way past the $1k barrier.