Because Indian Head pennies are older than the more familiar wheat and memorial cents. Thus, less are preserved and they are scarcer. Also, many times the mintage figures were much, much, lower on early Indian Head pennies than on even wheat pennies, let alone memorial cents.
Type II
Indian cents all have some premium above face value. The older large cents are even more valuable.
you have to be more specific in your question . if you are talking about the pennies before Lincoln pennies, it was an Indian head penny
Type 2 pennies are typically more valuable because of some error on the penny. A type 2 Indian head penny are the ones minted from 1886 to909 and the last feather of the headdress is pointing between the letters C and A of America. In 2000 type 2 pennies have a space between the letters A and M of America. These rare pennies are not minted this way on purpose.
This type of error is called 'Off Center'. The more of the impression missing, the more it is valued, but those with a readable date and mint mark are the most valuable. If your penny (with no date) is an Indian Head penny it is worth $55.00. If it is a steel penny it is worth $45.00. Wheat pennies and Lincoln Memorial pennies are only worth $3.50.
1889 isn't a rare year for Indian Head cents. Please see the Related Question for more information.
Indian head pennies were not produced in 1807. A 1907 Indian head penny would be worth a dollar or two in heavily circulated condition, perhaps three to ten dollars in lightly circulated condition, and US$25 or more in uncirculated condition.
The first wheat pennies were dated 1909 so you must have an Indian Head cent. See the Related Question for more details.
Generally, coins are valuable because of the price of the metals they are made from, but if you mean in a collectible way: One thing that makes a penny valuable is the date. They older the coin usually the more valuable. Another thing is the mintmark. For example 1943 pennies with a "S" mintmark are more valuable than pennies with no mintmark. Another thing is the condition of the coin. The less ware it has the more it's worth.
Indian head cents were struck for 51 years so you need to know the coins' dates and conditions. Please post a new and more specific question. You can also check a price guide like the one linked below.
You need to provide much more information. Pennies have been made since the 1700s! Common pennies from circulation are worth only face value. Wheat pennies are usually common and worth a few cents to a few dollars in circulated condition. Indian head pennies are worth a few bucks in average grades.
WHAT YEARS be more specific..