SSD question

[MR.BUTTON]

i heard some say that SSD will gradually become slow after using, but HDD is more long-lasting. is it true?i'm considering a 2012 MBA, or slimmer 2012 MBP. i know that SSD is much faster,but i want the speed to last long.opens apps fast, super responsive...like that.BTW,do you guys think the 2012 MBA refresh will give away something like backlit keyboard?appreciated for replies...

mid-2010 macbook,iPad 2,iPhone 4s,iPod nano

 

[bogatyr]

They slow down as they fill up. Details can be found here:
http://en.wikipedia.org/wiki/Write_amplification

However, even when full, my SSD drives have always outperformed a HDD.