Miss E, your thinking is accurate across the board. In addition, in most cases coins as "bulk" silver will carry a bit of numismatic premium. Less so for, say, Roosevelts than Morgans but has to be factored into one's thinking. It's unlikely a seller would get much of that premium from a dealer but they could probably expect to on
ebay.
For the record, when you see a link autobroken like the one you posted, it indicates a website which has done something to Coin Community which would have gotten it banned had it been a member. We cater to newer collectors here, including many young ones, and we run a very conservative ship in that regard. We won't allow linking to sites which display R-rated ads, for instance. Steal affiliate links, offer a conduit to ripoff artists and third-world slabbers, you'll find your site unable to link from here. So it's not you.