Thanks to MTGGoldfish, awesome site, check them out here:
In all of these price histories, I have slipped to the left a little to show the fine detail in the price history before the buyout.
This progression begs the question: which Reserve List cards from Arabian Nights, Antiquities, and Legends currently valued at under $100 have yet to spike? I have highlighted these in purple. Here is Arabian Nights. There's not much meat left on that bone!
Here is Antiquities. Most of the cards yet to spike are U3s, otherwise referred to as uncommons.
Legends is where there are many rares yet to spike. If all of these do, that will signal the maturity of the current bubble. If they don't, it may signal that there is a specific plan to the buyouts, and that they follow a long-term schedule that began before this Summer-there have been a range of buyouts taking place since Summer 2016.
September 2, 2017 update: I will add a few more, yet there are many of these cheaper rares, especially for Legends, that have only increased by a factor of two to five, and some have not moved at all.
September 6, 2017 update: Bubbles are ridiculous and stupid, yet, like train wrecks, it's impossible not to want to watch them unfold. Here are three more buyouts. Stangg isn't even on the Reserved List... what?
September 10, 2017 update: The bubble continues to build. Here are three more additions.
The bubble is not completely built on the premise that rare Reserved List cards will not be reprinted. It also comes with a second expectation that rarity alone deserves a much higher price. I wonder ow long all of these prices will hold.