The part you wrote with price elasticity doesn't make sense. Clearly, by looking at reddit we can see that prices for GPUs are elastic. Price elasticity of demand just measures the % change in quantity given a % in price. It is not informative what price you should choose to max your profits.

The second part you wrote, though, I agree. Wealth concentration in the top percentile/decile seems to be high enough that apparently for many firms it seems to make more sense to choose to serve predominantly that cohort than the broader market. Note, Bernard Arnault, quoted as the richest man presently alive is the owner of the fucking gucci and other luxury brands. Rather crazy that the guy who sells 500$ tees and 5k-10k+ bags is one of the richest people. Of course, data on wealth inequality is indicative of this: 12% of world pop own 85% of world wealth, https://en.wikipedia.org/wiki/Distribution_of_wealth#/media/File:Global_Wealth_Distribution_2020_(Property).svg . In US it is not much different, top 10% own ~70% of the wealth in US.