Yesterday I started following you for all of the data you showed on the summoners and wow, I'm already glad about that decision since this was a quality post as well. I don't have any of the new legendary cards, but this makes me want to buy a River and a few other cards since their prices are so affordable right now.
Anyway, I really want to see what you write in the future!
I'm glad you find this useful. I will try to dig out as much interesting stuff as I can from these data.
If you have any question you think this kind of data can answer, or any other statistics you are interested in, please let me know!