Beta Losers

The warranty expiry date has been and gone and no-one even noticed
But all our friends were there when you broke down
Since when did our relationship become obsolete?
I'm sorry if thought that the equation would always be: you plus me
Now I feel like I've been dumped but I've been superceded
You were the pride of every loungeroom once
But now you've found out that you're worth nothing
That you're worth nothing
Now each of my arguments you laugh at
But it's still a superior format
I might only have five videos to choose from
But I can still tape off TV
Now I feel like I've been dumped
I feel like I've been dumped
What's the difference between dumped and superceded?