Is it bad for the position of a Wii vertically, without the gray / silver in the base there?
I was worried that the database could be there to keep a vent to be blocked and I did not overheat. Thank you in advance!
No, the base do not all the features of aeration, it is the same as putting it on the ground in this regard. The problem is that you do not want not switch the system or wobble while a disc is spinning in her. The base is quite heavy compared to the system itself, it creates center of gravity low to protect against that. This is particularly a problem if you use Gamecube controllers wired, as they emerge from the top.