I have one of those 128G MacBook Airs, and the SSD failed on me literally a few days after the warranty expired. I took it to the Apple store to see if they would repair it under warranty (Apple used to be lax about warranty dates), but they told me no. I ended up ordering 256G SSD from OWC and repairing it myself (which was cheaper and faster then what Apple store clerk quoted me for a new 128G SSD). Called them tod…
Many actions / decisions being made really depend on the store. Personally, I needed an iphone replaced and one local apple store decided NOT to even look at the iphone. Another apple store was very upfront: they looked at the damaged iphone, and offered an exchange for $200.