RG,

I suspect you may be referring to Optima's Blue Top marine
battery when you refer to twice the price and half the capacity.

You're right, the Optima's are what I was referring to and the only
AGM's I've seen locally when looking for a trolling motor battery. I
stand corrected and appreciate the 'education' as I was not aware
there were any AGM's that had those capacities.

-JimL