It sort of reminds me of a video I watched some time ago where some guy explains how he was cutting costs, by instead of having a high memory server they used one with nvme SSD and cut on memory usage a bit (I believe they used it to host some redis instance). Was like 1700 dollar difference per month, although I couldn't help but think if the time spent on the project was actually worth the manhours paid to the guy for cutting those costs.