I looked at your links, and would agree that many of the
coins are worth more than the
Two Cent common price.
For me ... I would not agree with many of the grades written
on the 2x2's.
I help out at local coin shops, and enjoy looking through and
sorting collection that come in. At first I would look for
wheat cents like you posted, thinking some of them have a
better than common value. But after putting hundreds of them
to the side to 2x2 it became overwhelming. I will put away
the semi keys, like 10, 11 and 13 "S" mints and the 22 D's.
But they will pile up.
What I am saying is ...
Coin dealers will see volumes of common and semi common coins.
More selling these type coins than buyers. If you owned a
coin shop, at what point would you stop paying better prices
for coins that you already have and are not selling. And when
the coins have problems like cleaned or damaged they are much
harder to sell. If you already have rolls of 1909 vdb cents,
how excited would you be to buy more .. just a example.
Once you try and look at the coin dealers side of the table,
you might understand why he offers the lower prices for your
coins.
Another example - I really don't try and purchase wheat cents
anymore. But I will buy whole collections when offered to me.
Here is a older picture, maybe two years ago, of just my
U.S. cents. (I have a lot more now)

If I took these to a dealer, I know they would do the same
to me .. offer
Two Cents each for the wheat's.
If I was going to sell, I would sort out the semi keys and
better grade early wheat's and try to sell them on
ebay.
Even then the fee's and shipping would eat into most of the
selling prices.
There are collectors that acquire coins for the joy of collecting.
There are many that are doing it with the idea that they are
making good investments.
Buying common .. problem coins is not a good investment.