I like the natural progression of Sony consoles - I wish people would see that throwing large sums of money at franchises to secure exclusivity/timed exclusivity for launch is a short term solution to compensate for the dabacle that was the xbox launch - incentive, if you will, to get those that were put off by the drama, back on board - Could microsoft theoretically throw large sums of money at games for the rest of the Xbox Ones lifespan? yes, they have enough to do that.
But will they? I doubt it - And if they did, they'd get a reputation for throwing money at anything they think will sell, and that will, undoubtably, end up being abused.
Im standing back and im looking at my Wii, 360 and PS3, just as i did when these three consoles launched, at my GC, PS2 and Xbox, just as i did when those launched, at my PS1 and N64 - and what is clear to me is that PlayStation consoles receive a steady stream of amazing games, increasing in quality over time - and that flow is not stemmed nor impacted by the age of a console, and continues to be supported long after a successor has been announced, or released.
No other console manufacturer can say that, because their support drops to next to nothing before the consoles even get replaced, looking at the Wii in the run up to Wii U launch was just depressing, and the number of must-have exclusive titles for the 360 in the last 2 years has been pretty laughable too.
So in short, i'm buying a PS4 because I know i'll be excited about upcoming games for it just as much in 6 years time as I will be in 2 months time.