Bash is a godsend for quick debugging and I can see the temptation to start writing production code using bash. It basically boils down to a few things IMO: - large bash scripts are hard to read/maintain - complex modelling chains need intermediary points in the processing On the latter point I can't count the amount of times where being able to query an athena database has saved a lot of headaches. The overhead from parquet and AWS bills pales in comparison. I'm sure almost everyone already agrees with me here but it's a classic case of the whole being more than the sum of its parts.