Stamped weights vs Brushless setups

[GriMM]

Yes....the ss5800 kit is supposed to be here on the 1st and i just bought the stampede chassis last night. Any recommendations on battery packs? I have 9 or 10 packs right now, all of them are low end dynasport, like 1500 mah at the most. I know batteries are a big advantage to have, I usually just bash around running one pack after another until all of them are dead...are there packs that last 30 minutes or so? thats what i really need