Yeah the best thing to do would be to 50/50 test the email to measure the true impact. But I think the conclusion that "See it" is better than "Buy Now" is cer

Yeah the best thing to do would be to 50/50 test the email to measure the true impact. But I think the conclusion that "See it" is better than "Buy Now" is certainly reasonable. The first thing I thought when I saw the two images was about mobile - it seems like the first version was a lot more friendly for mobile devices than the second design. Since more and more people are clicking through promotional emails like this on their mobile devices, that could also play a role in CTR.