Which case should I get and does a mesh cool better than a window?

[hilmart]

I'm building a computer and the case I wanted was sold out.

These cases are available to me: Corsair Special Edition White Graphite Series™ 600T Mid-Tower Case and the Corsair Obsidian 650D Mid-Tower Case

Which one should I get? Does the white case go beige overtime? The white one has a window or a mesh on the side. Which one should I use? Does the mesh open up more and therefor maybe cool better?

 

[alvine]

does it go beige? i dont know my case is black
as with my case it has a 120mm intake on the side and mesh around it, the mesh it for looks..there is a window behind it
i would recommend getting a window one because you want to keep the inside of the case positive pressure meaning you want more fans intaking air and the rear fans and top fans to exhaust the hot rising air