Of course the sponsor matters, not for who they are or how much cash they have, but their logo.
When the new shirt comes out, there will be a 20 page thread about different tones of red, how many millimetres long the collar is, the diameter of the buttons, so what sits smack bang in the middle of the chest in a 10in x 10in space is quite significant.
I quite like the plain white shirt shown in the picture on the OS by the way, makes is look a bit more like Spurs.