While in general I agree with your overall argument, when it comes to:
> cloud provider's equivalent service you have to keep up with their changes, price increases and obsolescence
AWS S3 and SQS have both gone down significantly in price over the last 10 years and code written 10 years ago still works today with zero changes. I know because I have some code running on a Raspberry Pi today that uses an S3 bucket I created in 2009 and haven't changed since*.
(of course I wasn't using an rPi back then, but I moved the code from one machine to the next over the years)
> cloud provider's equivalent service you have to keep up with their changes, price increases and obsolescence
AWS S3 and SQS have both gone down significantly in price over the last 10 years and code written 10 years ago still works today with zero changes. I know because I have some code running on a Raspberry Pi today that uses an S3 bucket I created in 2009 and haven't changed since*.
(of course I wasn't using an rPi back then, but I moved the code from one machine to the next over the years)