That's missing my point. I too believe that the cost of serving static files is effectively epsilon. But that's not all PACER fees pay for.

Your point is taken, it’s simply a philosophical debate between public funding and user fees, and if the system is exposing the right folks to the relevant majority of costs vs socializing the costs broadly. My position is that if the costs are relatively insignificant, socializing them is simply more efficient. I accept others may have a different philosophical take. I suppose user and landing fees in US general and commercial aviation are a similar analogy for comparison in the support of fee collection.