As long as Sony keeps up adding PS3-, PS4- and Vita-titles to the Instant Game Collection every month, many PS+ subscribers with only one of these systems should be stimulated enough to invest in one or even two of the other two systems.

No need to drive the cattle customers to another system by killing the old one.

Not sure I agree yet, the issue with ps3 and 360 is theya re grossly over priced for 7 - 8 year old consoles, the ps3 being 250 is assinine at this stage. If sony drops the price to 149 sales will pick up still for awhile. The issue is the gen has gone on so long and console prices have not dropped enough, ps3 being 250 and ps4 399, insanely close for such a gap in hardware,

Are you serious? LOL

The target group of PS3 and PS4 are not the same, PS3 is 2x as cheap, those people won't get a PS4 until it's cheaper. Simple economics. Do the cheap Samsung phones eat in Galaxy S4 sales? No.

The PS3 will go on to sell 100 million units, Sony will still push it in emerging markets after sales fall in the West like they did with PS1 and PS2.

you're the only one.

...but as long as one person gets it i'm happy.  xD

I clicked the links he he he

nope.  :)

Just like the PSX and PS2 before it, the PS3 is there for a cheap console that already has a solid library of games that can't be played on the PS4.

With the PS360 almost being as powerful as the Wii U, the Wii U's biggest rival isn't the PS4 or Xbox One, it's the PS360. If someone didn't own any consoles and they wanted something cheap, the PS360 are cheap and offer a large amount of great games, compared to the more expensive Wii U with less games.

Additionally, keeping the PS360 alive keeps third parties happy. Instead of releasing just PS4 and Xbox One games, these developers can release to a console with a large install base, guaranteeing more sales. This also keeps fans who are not ready to move onto new consoles happy as well. Still play new games, maybe not ones on the next gen consoles, but new games nonetheless.

Now the PSP on the other hand, I do think they should kill off.  The PSP is dead everywhere but Japan, but even in Japan it's not really selling well any longer.  The problem with keeping the PSP alive is that there are exclusives for the PSP which may have the chance to be localized if developed for the Vita, and then there are those Vita/PSP multiconsole titles, so  for those in Japan, why buy the Vita when you can play almost every game released on the PSP as well?

The PS3 sells because it's a high-quality Blu-ray player.

If they are interested in an old console like the PS3 its either because of its price or games.
By taking that option from them, they will not get a PS4 instead because its a much higher price and doesnt have the games they might want like GTA V or TLOU.

I doubt that, you can get BR players for half the cost of a PS3, and though you could argue that it would tempt people who want one to get a PS3 to get the gaming abilities as well,  I think most people who would be swayed like that bought their's a long time ago.

With a price drop though, a £99 PS3 could creep into that market