if anyone as read my comments on ps3 vs 360 forums then you will know i have both consoles and psn but i dont have live to save a bit of cash. now im starting to regret it. lives got gta and fallout dlcs, what should i do???
Well, ultimately it's your choice, but if you are going to invest time and money into buying and playing xbox games then I would recommend getting live. For 1 year $50 isn't too steep, and even if you play it infrequently you will get your money's worth. Being able to play online is essential for certain games and increases the lifespan of some massively.
If you have an Xbox 260, you have to have XboxLive. There's no way around it because as you found out, DLC is an awesome thing. It'd be even better if the stuff was free.
You do realize silver is free, right? Even if you get gold alot of DLC still requires Microsoft Points. So if you just want DLC it's pointless, but for everthing else it's definately worth it.