Yep unless software sales skyrocket there is no way a dev could justify making the assets/games that would fill up that kind of RAM.

I doubt it will even have 32gb let alone 130+
Even if you were running gpu twice as powerful as today's pc hardware, and your target resolution was 4k, 32gb ram (let's assume 26gb was used for vram) would be overkill.
Also the load times would be retarded unless they were using 6gbit data and ssd's

I would assume the next gen systems will be running 16gb in all honesty,  beyond that just isn't needed

Hmm... interesting, but I think like others have said, that 32 or 64 would be more reasonable.

Also I think higher resolution gaming will come before we get that much RAM, like 2K or 4K. 4K is the next big thing, and like Blu-Ray it will take some time to catch on. But after 4K, I thiink we are at a point where a higher resolution won't even matter because we can't tell the difference. 

That won't stop manufacturers from keep pushing the resolution. In fact, they are already doing it

http://www.pcworld.com/article/2824372/sharp-nhk-push-8k-tvs-ahead-of-2020-olympics.html

Behold, the mother of all overpriced TVs:

http://www.amazon.com/Samsung-UN105S9-Curved-105-Inch-Ultra/dp/B00L403O8U/ref=sr_1_2?s=electronics&ie=UTF8&qid=1415528767&sr=1-2&keywords=8k+tv

Embrace pretentiousness!

And this isn't even 8k.

That has to be a placeholder being that the TV is out of stock, it's beyond ridiculous.

LOL no, thats the actual price. 

Lol have you read the reviews, their pretty funny

The first playstation has 2mb system ram and 1mb video ram, so that's 3mb total. Playstation 2 has 32mb RDRAM and 4mb of eDRAM. So it isn't always a 16x leap.

I think 128Gb is more than feasible, it's more or less reliant on the PC and other markets that rely on the technology for higher capacities to make it feasible from a cost perspective.

There is a shift to 16Gb occuring in the PC space now that 8Gb is the majority amount in a gaming PC.
Samsung, Hynix have already shown-off 128Gb DDR4 memory sticks. (Allowing for 1Tb of Ram in a 2x Quad-Channel configuration on the desktop! *DROOL*)

I beleive that there is going to be a bit of a jump in capacities and densities once mainstream PC's switch to DDR4 and GDDR6, by the time the PS5 rolls around there should be a push for DDR5 and GDDR7 or some other standards.

I just won't start saying it's "Impossible" for the next gen to have 128Gb when, I'm already rolling around with 64Gb DDR3, today, potentially 1Tb of DDR4 in a year or two's time. (I'm just waiting on the right coloured motherboard and ram, to fit my builds theme.)

However, it will also cement the need for higher speed internet and the removal of last century optical and mechanical discs, otherwise you *will* be waiting forever and a day for a games assets to be loaded into memory.
Interesting to see if NAND evolves to a point where it will supplant such technologies in the next generation.