I have to agree with those who say 'lose the attitude that you're entitled' to a replacement.
Two weeks ago my Magic Mouse, a good four months out of warranty, began randomly disconnecting/reconnecting from my iMac. I installed a fresh copy of OS X on an external partition and created a new user on my main hard drive to test it out, same thing occurred on both.
I made a Genius Bar appointment, and was more than willing to pay for a repair or replacement. I knew the issue was intermittent so I recorded the fault on my iPhone 4 and took the footage with me to the store.
The Genius asked me what was wrong, and I calmly explained that my mouse was disconnecting and reconnecting randomly and that I knew it was four months out of warranty, but had the receipt if proof was required. I asked hwo much it would be to take the mouse back behind the bar and repair it, and he said that he would try to recreate the issue first. Unfortunately he couldn't so I asked if my recorded footage was sufficient to show the issue?
He agreed, quite happily, to view the footage and even struck up a conversation about my music taste as the video was recorded while using iTunes and the pointer had stuck during disconnection over my rock/metal albums. "If you're going to get a stuck pointer, that's the music to get stuck over", he said.
He went on to say, "Yeah, clearly there's a blown connection or component in there, let's get you a new one". He took a new Magic Mouse off the shelf, put it into my own Magic Mouse's box, and sent me on my way.
Never feel entitled, these guys will always help you if you give them their rightful place first.