Good thread and glad to see there's still some love being expressed for P&S cameras and particularly the RX's. I think the RX100 series are really brave cameras - after all who in their right mind would release a small sensor compact with a fixed lens but load it with the sort of quality features that means it ends up costing more than many DSLRs.
Absolute madness! says the years of received camera company wisdom that differentiated product lines that shouldn't compete with each other (and yes, Canon I do mean you!)
Anyway, I currently have an RX100v along with an A7r and while even now the A7r never fails to impress (as long as the subject isn't moving too quickly
and I've thought ahead and stuck the right lens on etc) the thing about the RX is that I can take it anywhere cheaply and easily. You can pick up an underwater housing for under £400, there's no weight to it and you don't need an extra annoying bag with an extra lens in etc, also in use its inconspicuous as it looks like a phone etc etc. So, despite the limitations of the small sensor it's still my most used camera and I find the video functions are really, really impressive.
I've been thinking about a general camera upgrade for a while now but this range of cameras does make decisions about what makes a good (no, lets say a really
useful) camera hard though. Do I get a full frame to replace the a7r but have to use the increasingly outdated RX100v (no stabilisation, not great WB etc) for a lot of stuff or go for for something in the middle (A7c) but then can't really afford a housing for underwater adventures or just get a new RX? Probably best to await the A7iv (this Sept) and perhaps a new RX100viii see how that shakes up Sony's range in terms of features / pricing before I think about spending any money.
Anyway, here's some stuff out of my RX100v...