Sounds way too long unless you use no extra services, and no outbound bandwidth to speak of. AWS outbound bandwidth costs in particular is tens of times higher

Sounds way too long unless you use no extra services, and no outbound bandwidth to speak of. AWS outbound bandwidth costs in particular is tens of times higher than what you can get elsewhere, to the point that when clients insist on S3, e.g. because they're worried about durability (which is a valid consideration), I usually ask if they'd be happy to put a hefty cache at a cheaper provider in front - if you use lots of bandwidth, it's not usual for it to be cost effective to cache 100% of the dataset somewhere cheaper just to avoid AWS bandwidth charges.