This is true of Wellesley College, and is also true for several of the other excellent “liberal arts colleges” in the northeast of the US.
This is one of the reasons that we had a daughter attend university in eastern Canada, where the small “primarily undergraduate” universities are very good and much more affordable. They are however not well known in the US.
Each family needs to make up its own mind whether to spend $80,000 per year for an undergraduate education. This will of course depend upon your personal situation.
The cost of education will also have some impact on the makeup of the student body at each college and university. Again, what is a good fit for your child can take some effort to figure out.
I have noticed that for the cost of education at Wellesley, Bowdoin, or Amherst College (I ran the NPC for all three), we could have sent her to university where she went, bought her a car, and bought her a house. She pointed out that it would have been a relatively small house.