Why did some people think the Louisiana Purchase was a poor decision for the U.S.?

The land was already inhabited.
It cost twice as much as Jefferson hoped to spend.
It was uninhabitable.
It was expensive and vast.

There were a few reasons why some people thought the Louisiana Purchase was a poor decision for the U.S. Firstly, it was believed that the land was already inhabited, and some people were concerned that the U.S. would have to deal with conflicts with the Native American tribes who lived there. Secondly, it cost twice as much as President Jefferson had hoped to spend, which caused some critics to accuse him of overspending and mismanaging the nation's finances. Thirdly, some people believed that the land was uninhabitable and not suitable for agriculture or settlement. Finally, the purchase was expensive and vast, and there were concerns about how the U.S. would administer such a large area of land. Despite these criticisms, the Louisiana Purchase ultimately proved to be a significant boost to the U.S. economy and territory.