1. CapsLock. Grr.
Not having it would be worse. Nearly all engineering drawing (as well as some additional technical writing) standards require the use of all caps to minimize ambiguity. In those cases holding down the shift key is ridiculous.
2. The numeric keypad on 15" laptops. Why? Why?! Why?!!
Because some professions require typing in numbers efficiently? The toggle on number pad layout using letters doesn't work since the keys aren't properly aligned.
3. But please bring back full-size Page Up/Down keys (with maybe a shift action to Begin/End).
This I can somewhat agree with. Though, it usually isn't a problem on full size keyboards.