[MacBook Air Teardown] 'No Waste Outside, Nothing but Waste Inside' [Part 5] -- Tech-On!: "'The total number of screws in the MacBook Air was several times the number used in a PC we make,' one of the engineers said."
Sometimes what someone complains about tells us more about them then about what they are commenting on.
The MacBook Air was never going to be "cheap." Apple may make inexpensive produces but they are never cheap. I went to the local Best Buy that has an embedded Apple Store which had an MBA, I could pick it up by a corner and it didn't groan, creak or otherwise complain like the nearby PC laptops that I compared it too. That makes a difference, whether or not you think it does.
It reminds me of the anti-homeschool argument "...but what about their socialization?" If that is the best you can come up with you have issues.