[TheFlyingFish]

Lots of people here mentioning reasons to both use and avoid the cloud. I'll just chip in one more on the pro-cloud side: reliability at low scale.

To expand: At $dayjob we use AWS, and we have no plans to switch because we're tiny, like ~5000 DAU last I checked. Our AWS bill is <$600/mo. To get anything remotely resembling the reliability that AWS gives us we would need to spend tens of thousands up-front buying hardware, then something approximating our current AWS bill for colocation services. Or we could host fully on-prem, but then we're paying even more up-front for site-level stuff like backup generators and network multihoming.

Meanwhile, RDS (for example) has given us something like one unexplained 15-minute outage in the last six years.

Obviously every situation is unique, and what works for one won't work for another. We have no expectation of ever having to suddenly 10x our scale, for instance, because we our growth is limited by other factors. But at our scale, given our business realities, I'm convinced that the cloud is the best option.

[jjeaff]

This is a common false dichotomy I see constantly. Cloud vs, buy and build your own hardware from scratch and colocate/build own datacenter.

Very few non-cloud users are buying their own hardware. You can simply rent dedicated hardware in a datacenter. For significantly cheaper than anything in the cloud. That being said, certain things like object storage, if you don't need very large amounts of data, are very handy and inexpensive from cloud services considering the redundancy and uptime they offer.

[ttul]

This works even at $1M/mo AWS spend. As you scale, the discounts get better. You get into the range of special pricing where they will make it work against your P&L. If you’re venture funded, they have a special arm that can do backflips for you.

I should note that Microsoft also does this.