[georgewfraser]

For sure, but you're not going to fix that by making your own data lake using, for example, Parquet-on-S3. You're still going to pay the cost of compute when you analyze that data, and a well-optimized commercial database system is extremely hard to beat. Even if you look at Presto, and you exclude the people costs of managing it yourself, it still can't beat the commercial systems: https://fivetran.com/blog/warehouse-benchmark