I worked in this space for over a decade. It's so weird to me to see the workhorse sequencing hardware like the ABI 37x/37xx series, 454, and Illumina machines now as literal museum pieces.
Agreed. Seeing million dollar sequencers on ebay for a few thousand bucks makes me want to reach for my wallet, but the I realize there are no reagents for it anyway.
Roche's Sequencing By Expansion platform and UltimaGenomics' platform
(edited for clarity)
https://pdfs.semanticscholar.org/5080/78a97f4778eee488e11032...