Replacement Battery Help/Choices/Opinions

So I am leaning more towards replacing the batteries with the same Trojan T-105's and add a watering system if height allows. It's hard to beat the performance I have received from the current set up and to just AGM's at twice the cost. I think the main reason I have had such great performance out of the current setup is my depth of discharge (DOD) has never really gone below 70%.

Thanks everyone for your imput and helping me make an informed decision on my next battery purchase.