Solid points but disagree to the extent people will suck up the $100. You'll always have your buy it at any price crowd, but that demographic thins out the higher you go and I'd wager that goes for both the 'only buy COD/FIFA/Madden' crowd as well as the 'buy several games a month' hardcore.
The greater conversation here is the balance point, to use your term, where the industry can feasibly rein in budgets, and charge prices that are more inclusive instead of increasingly exclusive while maintaining their margins. Anyone interested in the long term health of the industry from a consumer POV, not white knighting companies operating in the interests of infinite growth ( not saying you are, to be clear) shouldn't be championing for anything but the long term sustainability of the industry and that is not prices going up at a rate that the mass market inevitably cannot meet. I don't see an industry that requires the collateral damage of laying off creatives in the thousands as something to maintain. It may mean games need to scale down a bit, normalize longer hardware cycles( with things as they are now I would argue we really don't need new consoles before 2028, but those who need to be on the cutting edge will disagree no matter the cost or viability), and/or tools continue to improve so that we can return to the days when publishers could pump out a trilogy of great games over a gen instead of a single entry, smaller games aren't swallowed whole by AAA and the GAAS model, and a company wasn't at risk to shut down or downsize if a single project failed to meet projections. We're losing the plot a bit here.
Many regions outside the US don't even have the same buying power and as we are seeing now, in order to balance out the US market these companies will pass those costs to other regions( like tariffs). Even when you had people unable to afford the $60 tag, that price existed during the 7th and 8th gen when we were neither in a period of major cost of living inflation ( we did have the 2008 crash, I would be remiss to ignore that), economies of scale brought hardware prices down to mass consumer/casual levels of affordability, and games were discounted to 'no brainer' levels within fairly short time frames. I remember just last gen getting alot of PS4 games off PSN for $10 within 2 years of release. We're in uncharted waters where consoles 4-5 years old are actually increasing in price due to 'global economics', and software generally doesn't drop in price to the same degree. That will become a bigger issue when games baseline at $80( and I imagine $90 will be here before 2030, I'll be surprised if GTA6 is any less), because their 'sale' prices will be like $50-60 and those aren't exactly 'shut up and take my money!'. And as an aside, as we go deeper and deeper into the digital era this means people flipping their old physical games for new ones becomes less and less a thing. It all adds up overall to less affordability for the average consumer.