What is the basis for what is highlighted in bold?

Microsoft has already stated that they are embracing the 10 year model for the XB1 and the Playstation brand has stood by this model with their three previous consoles.  So why would Sony abandon this model during the time of their most succesfful launch with the PS4?

Just because XB1 and the Wii U are lagging behind doesn't mean that Sony should start looking towards the PS5 much sooner than intended.  Just look at the 6th generation for a great comparison.

Amazon still don't have their own stock of PS4. Batman isn't getting replenished either, not sure what Sony are doing

I reckon Sony have sold more consoles in March than they expected and are currently trying to catch up on shipments.

I'm not sure if this is applicable at this moment, but Tachikoma did say during an earlier Amazon thread that PS4 would officially be getting a price cut in Spring and that it would be a new SKU that isn't slim. Maybe they're trying to clear out stock for that?

Hmm not sure about that. A price cut for the regular console would make the Batman bundle way overpriced. Seems too early to cut the price considering sales are still strong and we are moving into the quiet months.

well, we have The Witcher 3 next month but I agree, it's too early for another SKU or price drop IMO.

MCC Didn't work in November 

THey should wait until the holidays. Big price drop first week of November like MS did last year. Maybe the week before when Halo 5 comes out

Dat PS4 dropped... i'm surprised that is sold out in April honestely.

It what said by others before but I completly Agree, Unlike the previous gens, This gen has added nothing new, all three just pumped up the graphics, and unlike before when consoles where at the top of the line and where the best graphics at the cheapest price, this time we dont have the best graphics but we do have the cheapest price. It wont be long untill any pc starts beating the consoles in power. I know powwer is not the main reason why consoles are popular, but when they dont do anything to diferentiate from the previous gen aside from power, then its a problem. Even phones and tablets will be able to do what the new consoles can do in 2-3 years. 

I do get that sony is in the best position here and when morpheous comes out it might completly revitilese the console and add something that will keep it going for a lot longer. specially if it release at a low cost considering how expensive oculous is guessed to come to the market and ontop of a high end pc as well. Im gessing only the already very small master race will be getting into that. But that is yet to be seen so I stay with my short life cycle premise.