Based on the honesty of the boardie sellers the last few pages, you can create a pretty good price chart on your own. And based on that data, the approx price of each book is cheaper than it will be in 4-5 months, when the tv show hits, by approximately 10-15% for lower grades and 5-10% for higher grades. The scarcity of the book will keep them moving forward under their own merit towards a new pricing plateau with much less upward volatility in the next few years. The only way it could go volatile again is with a successful movie, to garner more exposure/buyers like the Marvel keys. The reaction of the crowd seeing the tv show pilot at SDCC will be huge to future of the character in the public eye as well.