1985 topps unopened cello boxes?

Dealer @ local card show has a couple 1985 topps cello boxes. He is asking $90.00 each
At what price is this a must buy? Also, is there anything I should look for that be a sign of tampering, etc...?
And for the clown's ready to drop there punches, I am talking about signs other then the cello wrapper being unglued and hanging 90% off of the cards.
At what price is this a must buy? Also, is there anything I should look for that be a sign of tampering, etc...?
And for the clown's ready to drop there punches, I am talking about signs other then the cello wrapper being unglued and hanging 90% off of the cards.

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Comments
The last eBay auctions were $80.01 and $75.00 though, so you might be able to find one cheaper there. You run into integrity issues there with all the re-sealers on there.
If this box looks legit for that price, I'd say Git-R-Done.