Lots of people offer whole genome sequencing. Dante Labs is currently offering it at EUR 259 (no affiliation: I got their mailshot because I bought their lower still Black Friday offer). Typical lab costs are thought to be more in the $1k range, with the assumption that some of these offers are made with the intent of rapidly acquiring a large corpus of anonymised full genome sequences which they hope most of their customers won't opt out of being analysed for commercial scientific research.
How many zeros are we talking about? Does anybody offer the service?