Buy a pound each and see what you like best. More expensive doesn't mean better flavour.
I agree. Here are some facts about the coffee your asking about.
1. chemicals for agriculture are illegal in Sumatra, this means all the coffee is organic no matter if it has the stamp or not at the origin. Poor farmers that can not pay for the organic certification can not afford the chemicals in the countries.
2. 99% of all coffee that comes in the USA goes into one of the big coffee storage facilities no matter who bought or is selling it. ALL of the coffee gets fumigated to keep the bugs from going crazy. The organic coffee has its own section that has a vinyl wall or covered in tarps. So even though it is said to be organic it has still been fumigated in storage.
Price can be different for the following reasons:
1. screen size, smaller the bean the cheaper
2. past or current crop, past crops are older and less money
3. roasters ability to buy in quantity. a roaster that buys and ships 50 pounds pays way more per pound than the one that buys and ships 1000 pounds per order.
4. same as above with bags, buying small quantity means more ever bag.
5. some roasters are VERY proud of their work.
6. roasters ability to contract coffee hen prices are low.
I was in Denver at a roaster and they were selling the same coffee I do for $21 per pound. My price for the same coffee is $10.50 per pound. After I stopped laughing it hit me that his price is much higher because he was buying one bag at a time.
Point is that the coffee could be the same just different supply chain and overhead can change the roasters price.
sorry for TMI