Lipo advantages?

[Scott711]

I'm considering jumping to lipo's but first I would like to know what's the real advantage of lipo's. Is it just the weight savings? And while we're on the subject what lipo's or how many lipo's would I be able or should I run with an 8XL/9920 combo in a 12lb supermaxx. I'm not the sharpest tack when it comes to understanding all this electrical stuff :P: but if you talk real slow it might sink in. :) Thanks and I hope santa was good to everyone.