Speakers 4.1 or 5.1 for me

[ebreeqelshay]

Hi,

should I get

Creative Inspire 4.1 m4500
Creative Inspire M4500 - 4.1 Surround speaker system for music, movies and PC gaming

or

Creative SBS 5.1 A500
Creative SBS A500 - Affordable 5.1 surround speaker system with subwoofer for PC gaming

I want to get serround sound in GAMES, I am on a budget but I can buy Creative SBS A500 5.1 if it's worth it.

I wonder if the center speaker would make a difference,without it they are the almost the same.

Thank you