For the M4 Mac mini, the RAM and storage upgrade prices are worse now in some countries. They updated the upgrade pricing last week.
The good news for the M4 MacBook Air, they dropped the base pricing. Also, in some countries like Canada, it's actually slightly cheaper than in the US.
If you can live with meager storage, the base configs are solid buys IMO. Considering post-pandemic inflation, it's kinda nice that Apple reset the base price to what it was 5 years ago. Having said that, nobody pays full MAP price anymore unless you walk into an Apple store. Retailers like Amazon and Best Buy are often discounting the popular SKUs throughout the year, not just for the holidays.
But it's still lame that if you want to "future-proof" with RAM and storage, you pay a lot for the privilege. NAND has jumped in cost significantly since 2023, so at least there's a market basis for that.
Looking back at the OP and the Mac mini with M4 Pro. 8TB storage upgrade is $2400 LOL.
(By comparison, the WD Black SN850X 8TB is $600.)