I started this generation of gaming a bit late, I was stuck with a 2003-4 Jurassic PC (Pentium 4, 1GB Ram, GeForce 6600 256MB) till I upgraded to my current rig in late 2010. I never was a PC gamer, other than a bit of Counter Strike at LAN parties with friend ans some Age of Empires game. I spent my gaming habits with my PSP and PS2 gaming. I have owned a NES, PSone, PS2, GBC, GBA. I would describe myself as a PS fanboy probably.
I chose PC gaming as I was in need of a computer for the university and seeing how Steam was getting steam (no pun intended) I thought, hey why not beef up the beast a bit so I can play some games too. My brother had already bought a Wii and an Xbox 360 by the time I got my PC. I found the Wii a bit shallow in gaming, except the regular Mario/Metroid/Zelda which are good games, but I can't lose my mind over them. And regarding the 360 I could never bear the fact of paying to play online. I was what the actual f*ck!
It has some great games, played GoW and Hallo in Co-op with my bro, but that's it. I never bought a game for it, even as I really wanted to play some 3rd party games, like Dead Rising, Brutal Legend etc. because I couldn't stand the idea of paying for online play, just from principle.
In the end I got a PS3 as gift from my girlfriend on September 2012, as I saw that it was the best moment, it has a great 1st party line-up, some 3rd party games that aren't released on PC and PS+ was the cherry on top for a new comer as me. I never liked subscription, because I feel like I have to dedicate myself to it, restrain my choices so I can make out the money I invested. That's why I don't like MMOs. But PS+ was an exception, but I'm kind of regretting it because I don't have so much time to dedicate myself playing and I feel the games for June/July/August will be wasted. I still haven't booted every game just to see even the loading screen. :P
So, after this long introduction, I can't see myself getting an Xbox One, I wasn't fascinated by Microsoft to tell you the truth from the original Xbox. I do have my PC and PS3 connected 24/7, my connection is decent enough for what is offered here, can download at 1-1.5MB/s sometimes even 2MB/s. I don't sell my games as I like to keep a collection and occasionally buy a used game or two, not from GameStop but preferably from an Indie retailer.
Regarding the PS4, I would buy it probably in the next 4-5 years, wait for a redesign/price drop (have to catch up with my huge back-log too). If Sony implements the same policy on always online or used games I will probably skip it altogether, but I just want to believe that they wont screw this up so I'll get a chance to play Kingdom Hearts 3 and Final Fantasy Verus XIII (if it'll jump ship). As I mentioned before, I wouldn't support these action from a matter of principle, I wont allow MS/Sony dictate if I have to go online or not, or what I can do with my purchased media.
As I come to think of it, probably by the time I'll decide to get the PS4 I wont have so much time to play as I do now in my college years. So for now I will stick with my PC and PS3 and time will tell how things will turn out.
Sorry for the long post! :)