Operations. At my $bigCo we are always rolling our own ops tooling for queues, as it’s more than just “reprocess message”; there is always some business logic that separates different types of consumers/destinations, and so q management is never straightforward. Might be a differentiable feature.
10m requests for $4.
You will need hundreds of millions of requests per month for it to be noticable.
And can an implementation like this even help you at that point?