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Raw values as a % of Slabs - a reasonable range?7802

Collector brandon77 private msg quote post Address this user
Since there seems to be no really reliable tally on raw books, with Overstreet providing just a sort of vague 'ideal':
Could a reasonable real-world value be derived from this simple formula:

Book X 9.6 slabbed - $100 (based on fair market value from GoCollect or similar)
Book Y same book, same grade (estimated), raw - $50

For raws, is 50% off the slabbed value about right, too harsh or lenient?

- B
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Collector CaptainCanuck private msg quote post Address this user
Really depends upon the book. Your formula may be valid for a modern book, however this most likely wouldn’t translate well into other eras, such as silver age.
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Collector moodswing private msg quote post Address this user
I have been trying to come up with something similar but there is too much of a discrepancy with older books. Plus you have to take into the consideration the raw grade. If a seller online thinks the comic is a 9.4, I always assume a lower grade.
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Collector MR_SigS private msg quote post Address this user
Quote:
Originally Posted by CaptainCanuck
Really depends upon the book. Your formula may be valid for a modern book, however this most likely wouldn’t translate well into other eras, such as silver age.


Agreed. A big SA key in a slab removes most concerns for buyers, so the percentage would be much higher than a regular SA book.

What people are currently paying is really all I can go by. If it's an item that has little, old, or no sales info, I use Overstreet.
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Collector QuaBrot private msg quote post Address this user
Usually take of cost of slabbing.

If you don't trust the seller, or feel he grades a little loosely, then discount more accordingly.

If you're just not sure yourself (is it a 6.0 or 5.5?) then discount down to the lower grade, minus slabbing costs.

There can't be a percentage because for a $100 book slabbing might be $30, which is 30%, whereas slabbing for a $1,000 book might be $50, which is only 5% . . .
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Collector Drogio private msg quote post Address this user
Recent raw sales on eBay is the best way to determine raw value quickly.

Slabs generally will be that price, plus the cost of grading/encapsulation, then a logarithmic scale of increasing price depending on the grade and popularity/heat index of the book.

I’m other words, no consistency between Rae’s and slabs due to too many factors.
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Collector mrelowe private msg quote post Address this user
If you want to develop a statistically viable calculation you will need a large data set. Fortunately sold eBay listings are easy to find for slabbed and raw of the same issue. You should get an average sale price for each condition for a large sample of books. Take price points as an indication of the popularity/rarity of the item and see if there is a correlation. The more data points the greater the degree of confidence in the data. If someone was to take on this task and analyze for a relationship/equation, I would suspect either a exponential rate or no correlation at all. There really seems to be way too many factors.
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Collector Johnnylray private msg quote post Address this user
This is the exact same question I have pondered for a while- which brings me right back to the comic book price guides all being worthless now. If the comic book price guide says book "x" at 9.6 is $50 ..and we see they are selling (slabbed) at $750 on eBay ! Crazy!
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Collector brandon77 private msg quote post Address this user
One factor I forgot to mention:

I'm only considering slabbed books with established, stable prices in most if not all grades with recent sales factored in (like you see at GoCollect). Only then would I apply the %50 off figure for their raw counterparts.

It's almost fruitless to track down random recorded raw sales. When there is no available EBay sales data for even the slabs (or only a handful in 5-6 years), then I defer to Overstreet, but lob off another good chunk. Because as we all know if there is no demand for a book then you're only going to realize a small % of Guide if you had to sell today. For the majority of raws at $8 - "9.2", I realize I'd be lucky to get $1-2, if that. So much for my 80s Avengers run..
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