What is the fundamental difference between cloud hosting and VPS?

Question

Cloud computing

No, I roughly understand the difference, but the financial issue confuses me.
For example, I have a VPS for a monthly cost that is quite stipulated in the contract with some clear hardware capabilities and limitations, relatively speaking (for example) it can withstand 100 people / sec, and in case of exceeding it will simply crash or give 500 series errors.
In the case of cloud hosting - for a blurry tariff plan I get a rubber server according to its capabilities - but then I get a completely rubber bill for services ..
Why I ask the question - what is the purpose of cloud hosting? And not to fly.
Or is this the next step when the project grows out of VPS capabilities?

Answer 1

What is the point of cloud hosting?

As always in money.
For example, the site brings 1 rub. for each visitor profit.
The site is visited by 100 people a day.
But I advertised on television and 1 million people came to the site in one day.
And he brought me 1 million rubles, and I gave some of the money to the cloud Amazon.
But the site did not lie at the peak of the load, but worked quietly.

Answer 2

With a "torn" intermittent load - there is a sense in cloud hosting.
With the rapid growth of the company / business, when all the resources are for development and there are no resources for admins / hardware.
An important point:
Your server must be designed for clouds, be able to scale horizontally (and not just vertically), otherwise there is no point in clouds.

Answer 3

Billing difference.

Answer 4

Yes, physically there is no difference, only in autoscaling to your tariff, that is, there is no horizontal scaling

Answer 5

On a VPS, if the load grows strongly, then it can reach the limit and shut up, on the cloud you go further and consume more power, but this can lead to a large bill