I wouldn't plan on buying it straight away, no. I wouldn't see the point and anyway, when a new product comes out I like to give it awhile and see other peoples reactions too it or maybe have a play on a friends system, just to make sure I make the right purchase.
No, I won't buy it straight away. I will be smart enough to wait for the price to drop. Usually when a new Playstation is released the prices are way too high for my pocket. I don't mind if I have to wait a couple of month to buy it. Also, I want to read some reviews and watch some gameplays to see if it's worth to buy.
Nope i won't buy a Playstation 4 right away because that is a part of my strategy, in fact i usually have to wait for a year or two till i read a lot of reviews about it and see what people are saying about it, i also have to wait in order to get it with a reduced price because i don't wanna buy it and regret buying it.
I think the PS3 still has a lot left in it, at least for about a couple of more years. Sony probably wouldn't release a new system before 2014 anyway. And even after they do, the PS4 (or whatever they are going to call it) will end up costing more than a nuke, and I will wait at least an year or more before buying it, if decide to buy it.
As far as rumors go, pretty much everybody - including me - is unhappy about how PS4 is not backward compatible and how it will not allow used games to run. So I guess majority of the people will wait for some time for games to come out for the new console.
For the record, I never buy consoles (and handhelds, for that matter) on their release. I actually buy them around a couple of years after, when the price has gone down. If I'm patient enough, I actually wait for a "slim" version. I guess I'll be doing the same for the PS4.
No doubt I am waiting anxiously for it to arrive in the market, I however don't plan to buy it right away. According to the strategy I always use before buying any expensive stuff, I always wait to let people review the product I'm interested in, and only after knowing the pros and cons of the product, I go for it. Apart from that, I don't really see any worth in buying it right away unless of course a really really good game is released exclusively for playstation 4. Even under such circumstances it is highly unlikey for me to buy the product at the soonest. Though, I have already started saving money, just in case I plan to buy it.
I personally don't find XBOX To appealing to me. I brought a 360 Slim off a friend for £70 And I just don't find it appealing. I still have my PS3 On 24/7. I will buy the PS4 Within say a month of release, so everyone who wants it, has it.
I might buy the Next-Gen XBOX A few months after it's out. But really, for me PS3 Is much more appealing.