unless you have a line on 7000mah packs, the sticks won't last as long

another point, stick packs work well when new, but over time and many cycles loose their ability to hold a charge, and will need to be replaced more often
My last 12 volt battery lasted me 6 years.

Advantage to stick packs??
they can be quick charged very easily, and are a lot lighter

Everything has pros and cons