Really it depends. Some coins with a CAC are marked up beyond belief. Others have only a modest markup. Some have no mark up whatsoever. It depends upon the coin, series, date, mintage, supply and demand, etc. No set percentage of what a green bean will do for any given coin, honestly.
That's what I thought...but don't you miss a lot of good quality coins from ebay? Especially if you are a Morgan collector as I am.
I think most agree, that you buy the coin not the slab, cac sticker or not. My only coin with green bean as you call it, is a 1914 D Lincoln cent graded F-15 by NGC. If that coin was a 1914 P it woud not have stickered in my opinion, but since its a key date, CAC had to put their name on it even though its a lowball lol.
Just a different kind of bait for the "bidiots" fish,you know like the PCGS plastic tomb makes a difference.....
Yes - you could miss some quality coins if you only look for the sticker. I look for the coins not the sticker. I have quiet a few CAC coins, but I also have a lot of non-cac coins.
I don't think he's talking about the sticker Mark. I think he's talking about only buying sight seen coins, whether they have a CAC sticker on them or not. And since any coin you buy on ebay you buy sight unseen - then you simply don't buy coins in ebay. That's how you miss them. But fish there's an answer to that. And it applies to buying coins sight unseen from a dealer, a private individual, or ebay. As long as the seller has a no questions asked return policy then you can buy the coins sight unseen because eventually you will have the coin in your hands and can see it. And it is only then when it becomes sight seen that you decide to keep it or return it. The downside of that method is that you risk having to shipping and insurance twice if you decide you want to return the coin. And of course with ebay you run the additional risk of the seller refusing to honor his return policy and refund your money and then having to go through the Paypal nightmare. And maybe getting your money back, or maybe not. And that's without even considering that to even be able to buy a coin on ebay, you're going to have to overpay for it because of the bidiots who are bidding against you. All in all fish, ebay is not a good option and really should be avoided by most folks. Buying coins on ebay has several conditions that should be met, before you ever buy the coin. The first of those is that you know the coins well. The next is that you know how to grade. The next is that you know the market - what real values are, not ebay values. The next is that you know the seller, and no you cannot know someone based on ebay feedback. You have to know them by reputation and personal references from others you trust. But if all of those conditions are met, then buy on ebay, but only then.
No, a good picture will be okay. I see my "sight unseen" comment needs a little more clarification. Say for instance a company on eBay is selling 5 MS64 Morgans, I would not buy one from the seller. I need to examine good quality photos before buying any coin and in this case, I have no idea what the MS64 coin would look like prior to purchase. I'd prefer to only purchase coins that I can have in my hand, but that's not possible and I'd miss out on many coins if I didn't buy using pictures.