Even though the price of RAM has gone up recently, it's still (even if you don't adjust for inflation) several orders of magnitude cheaper than it was in 1981...
I suppose that's one way to measure, but would a "real world measure" i.e. cost of the amount of ram to realistically run the apps/software/OS of the time be more relevant?
This graph (https://ourworldindata.org/grapher/historical-cost-of-comput...) doesn't contain the latest uptick, but just to get the picture:
1981: 1 TB of memory cost 12.8 billion $ (at least theoretically - I'm not sure if worldwide RAM production for that year was more than 1 TB?)
2023: 1 TB of memory cost 1088 $