#1: There is a certain grace period by which you'll be covered after paying a repair charge. What that length of time is however, I'm not sure. As far as your warranty...did you register your product when you bought it? If so, you should be good to go.
#2: Yes, I would. **** happens and just like I've yet to have my 360 or PS3 break down, I understand others have had problems. If you enjoy the product, then you simply have to accept that reality. ***** happens. Sometimes more often than not for certain people.
#3: I wish I had an answer, but I'm not particularly interested in high def movies. I think I own 4 BR in 5 years of having a BR player at my disposal.
Wish you luck on that warranty.....and if not, and you can wait that long, summer trade shows and the new Xbox/PlayStation reveals. Hopefully the new PS has BR and BC, then you can just sink the cost of a repair or new PS3 into the PS4.
Good thing you dont game or watch movies on Xbox if your worried about the ps3 reliability.
I recently sold my Xbox. It worked fine from 2005 to 2012. However, I didn't like it much, and rarely played it. The controller is terribly uncomfortable for me (same design problem as the Dreamcast controller) the interface is bloated with ads and I didn't really like the way it was organized, and most of the games for it that I would have bought were also on the PS3. The only reason I kept it that long was because I love Mass Effect. Once that came out for the PS3, I got rid of the 360.
"Whether you think you can, or you think you can't, you're right." -Henry Ford