Nintendo Switch Surpasses 140 Million Units Sold

Edit: It was the PS3 that supported Blu-ray, not the PS2.

The theory I've read about the PS2's success is that a lot of non-gamers bought one because it could play Blu-rays for cheaper than a dedicated Blu-ray player because Sony sold the PS2 either at cost or at a slight loss unlike their other Blu-ray players.

I think for a console to surpass that success, it would need to do something with popular appeal and do it as good as a dedicated device for a similar price. The Steam Deck might have been that if laptops were in higher demand at its release (e.g. if it released just before the pandemic when students needed computers for remote learning.)

In my opinion, a future console would have to basically be a smart phone and a mini-Switch. It would have to run Android or iOS because few people would migrate without support for their current apps.

If said device could run games with at least a 3DS-level of fidelity, it might be appealing enough to draw developers and players. But it would have to support more than just the current mobile game slop.