@BOOKidealist I’m not a DNA sequencing person. My understanding is that Illumina sequencing technique has been the main industry driver during those years. Now there is a new company with a different technique, Ultima Genomics, who can do it for under 100. However Illumina remains more popular in the industry (for how long who can tell). This may be due to Ultima still being “new” or it could be the sequencing accuracy, I’m not sure.