I'm pretty sure the Playstation was cheaper than the Saturn or N64. Anyways, Sony needs to make sure PS4 is a home run or else their gaming department is in danger. Here's a few pointers.
1. Keep it affordable, they don't need to be cheapest but nothing over 300$.
2. Massive marketing campaign, PS2 had an awful launch lineup and was a fairly expensive console for the time. Yet it still had a huge launch thanks to a great marketing campaign. Sony didn't even bother marketing the Vita which is one of the biggest reasons for it's low success.
3.Backwards compatibility, Sony pioneered BC and made it a huge selling point for the PS2. Ideally the PS4 should be BC with every Sony home console. Realistically, just PlayStation 3 would be fine.
Sigs are dumb. And so are you!