But even AGM runs double what lead acid cost. I am a fan of walmart batteries, if they go bad they replace them and walmart is everywhere. I have never had a problem with Walmart batteries.
I currently have AGM because I had a bunch of Cabela Bucks on my credit card, enough to cover one battery, so P paid the price for 1 AGM and ended up with 2.
But if my batteries went dead this weekend, I would probably go lead acid. I perfer 12V but 6V might give you more bang for the buck if you can fit them. I don't want to remove the tray because lead acid needs to have water added.