Is this a typo of "244 GB" instead of "24 GB"? Nearly any company that has a single machine provisioned with 244 GB of RAM is doing something severely wrong, likely putting the company's ability to grow at risk. Such a machine screams of trying to vertically scale a poorly performing legacy product instead of figuring out to horizontally scale out with 16-64 GB servers.
That much memory on a single server is a huge red flag for 95-99%+ of companies. It takes a very specialized system (ie: you probably don't fit the mold, no matter what your excuses are) to require such a server.
Outside AWS, you can put 3-6 TB in a normal-ish server from Dell or HP, or 64 TB in a big iron box from Fujitsu or IBM.
Checkout stack overflow stack too.
Their system is faster too.
That is my intuition. If you know of a video or blog post (conference, talk, article, etc.) where someone explains the benefits of a 2 TB MySQL server and how it is not a crazy bad idea, I would love to see it. Because my 15 years of professional experience screams "NO WAY IN HELL" at that one.
My initial DB schema was pretty bad. We did at 2 schema rewrites and migrations from the launch to 5M users. Each time it took 2 weeks of sleep less nights.
The machines today are really powerful. You can do a lot with 244 GB RAM machines backed by SSD.
Someone who doesn't have the skill set to be able to scale once they get traction - it's likely they will not have the skills to design for scale at start.
My recommendation to everyone would be pick a language and db you are most comfortable with and get started as soon as you can. You will fail on the product side a lot more times before you will fail on the technical side.
And if you are failing on technical side, reach out to me. I will definitely be able to help you find a way out. I am not sure if there is any product guy in the world who an make a similar claim on the product front. However there are at least dozens of technical guys in the world who can make a claim like I did.
So focus on launching the product as soon as possible. Work hard, reach out for help if needed. You will eventually get success.