Why did so many Europeans want to find a Northwest Passage?

The Europeans wanted to find this passage because they were interested in the technology that the Asians had used. They wanted to trade goods such as silks and spices. Marco Polo traded the things with Asia. Therefore, Europeans started to travel towards Asia. To reach this continent, they had to cross many different land-forms on our Earth. It was very difficult for them. All of the maps were used incorrectly and made incorrect back then.

They wanted to sail back and get money so they can go on another voyage.

Travel by water was less rigorous and faster than overland travel. They wanted a new route for trade with existing Asian markets.