A classic cartoon can become a classic because it has won everyone's love. Everyone recognizes this cartoon, no matter from the story or the animation effect, so the classic itself is a kind of value and can't be considered as money. This is very important. It depends on what you cherish, that is, what is the most precious for comics in your cognition!
Although I don't know how cheap the classic animation is, it is an insult to the classic animation, because the classic animation can't be surpassed in the follow-up. To put it simply, like Miyazaki Hayao's cartoons, they are drawn frame by frame, so there are countless cartoons, so they can be recognized by everyone and believed to be classics.
Moreover, you will find that most of the classic animations are previous animations. At that time, the animation market had not been disturbed, so the price of making animation might not be as expensive as it is now. There are also a large number of people who are really doing animation! Therefore, although it is cheap, it must not be described as cheap by derogatory terms!