1) I'd be very interested in such a service. 2) Yep, it's a lot, but that query is quite a lot bigger than most. Assuming some constraints on the layout of the index, I estimate you'd spend roughly $70 plus taxes and compute time retrieving the indexed documents from S3 for that query. You'd always be able to reduce or expand the keywords to and only retrieve as much as you could afford. I think there's value in both allowing people to tackle querying the index by themselves and providing a paid-for managed service that automates much of that.