Here's why the negativity (ripped from an earlier thread):
-Is it any thinner or lighter?
---Not really.
-Is it better looking?
---Maybe, but not by much.
-Is it any faster (processing)?
---Probably, but not by much.
-Is it any more powerful (gpu)?
---Probably, but not by much.
-Any ground breaking features?
---Not really. Glass trackpad could be great, but brings along the negative of not having a dedicated button. New keyboard brings both positives and negatives. Glossy screen issue has been over-discussed.
-Reduced price?
---Not really.