modded advantage is you can read illegal copy of a game i.e. Pirate copy (and it's not allowed to discuss anything related to pirate over here).

Disadvantage? you're essentially forsaken by Microsoft for no technical support, void 3years warranty, crippled functionality & lost onlime capability if you're banned and if you're not banned yet, chances for you to become the next ban wave victim is very very high.

You ask me, a game averagely worth RM160 only, a modded and unmodded cost is negligible but losing the capability to connect to XBOX LIVE & 3 years warranty is significant.

and dude, people work day & night for your enjoyment, don't steal that affort and pay to the illegals....