As others have already mentioned, since you've already replaced the speakers multiple times, it doesn't seem worth replacing them again. And if the dead pixels aren't affecting your ability to use the laptop, I wouldn't spend the money to get the screen replaced. I would save my money and put...
Agreed, hopefully they will add that ability at some point down the road, but it seems like something that should have been available from day 1. Especially given the length of time they appear to have been working on them.