The audience who would benefit from hypothetical $/usefulness would be people who don’t know what memory is and don’t know what’s inside of their computers, or what it does. This is a fine audience to be in and to serve, but obviously not the audience of that website and not HN.
If you think that audience is under served for memory market statistics, I encourage you to make such a website and serve that audience.
For people on HN, who do you know what memory is, $/GB is a fine metric.
Again, this is entirely dependant on who is consuming the statistic and for what purpose. For some use cases, yes demand data will be quite crucial. For others it will not. It's quite apparent the site's author doesn't see this as crucial and for the purposes I need to consider memory pricing, I agree.
That requires baking in assumptions, and makes the data less general.
You can go from $/gb to $/usefulness fairly trivially by adding assumptions, but you can't go the other way.
The PC stopped existing in isolation, for most useful tasks now, it needs an Internet connection.
It still does all the things I want it to do, including using modern websites with modern browsers on modern operating systems (including Windows 11).
The T530 was released in June of 2012.
We don't _need_ that much ram, we just found new things to do with more.