So, I've been having a though experiment after skimming information (So I may be getting a wrong impression) about the Amiga. Might not really pertain to discussion here but I feel it fits best in this thread.
The Amiga is a PC but I got the feeling it is closer to the likes of a Mac than a (Windows) PC. Hell, the Amiga feels more like a console than a PC. The basic hardware for each release are more or less the same (So like Macs and sort of like consoles) but it can be upgraded like a Windows PC though it seems like options were rather limited. It was limited enough to force devs to really push the Amiga to its limits, kind of like how devs do with consoles. This became especially so after Commodore went bankrupted in 1994 which only left 3rd party expansions that only put out for another few years.
The Amiga thus might be the closest thing to an upgradable but rather closed (for upgradability) gaming platform (Something that I suggested and mused over a few times around here) I know of. It is as if you took a Mac and made it a compromising gap between console gaming and pure PC gaming.
I'm not entirely sure how something like the Amiga can work in today's gaming environment since things really changed since the 90's. In my opinion, it could ease the problem with aging hardware (consoles). Last generation was painful towards the end of its cycle (So yes, I would put the long lives of consoles as a negative). Though with devs basing quite a bit on the lowest common denominator (X1...)... eh. It's a crap shoot.