It's funny how we've come full circle on media - sort of.
When CD-ROMs first came out, they seemed like a godsend. 650MB of storage compared to 1.44MB for 3 1/2" floppies or 64MB for the biggest N64 cartridge ever made, the N64 port of Resident Evil 2. Heck, most HDDs at the time CD-ROMs came out sported less than 100MB. Nintendo's failure to embrace CD-ROMs is universally seen as the unforced error that handed the video game market to Sony for almost every generation from the 5th gen onward.
Now flash memory continues to decrease in price to where there are flash cards with the capacity of multiple Blu-Ray discs. BD-ROMs are still cheaper per GB, but that difference is rapidly fading and I don't see Sony or MS making much noise about using 4K Blu-Ray discs for games. Meanwhile, though discs have improved, their drawbacks are still evident.
Sony went from optical discs on the PSP to cartridges on the Vita. Nintendo is going from optical discs on the Wii U to cartridges on the Switch. Unless the next PlayStation or Xbox go digital only (assuming those machines ever come out, that is), I wouldn't be surprised to see them go to cartridges.


