I would not say it's not about the quality of education at all - it's not hugely better than state universities but definitely not worse. I firmly believe I could not have received a better education anywhere else (except maybe even better institutions like MIT or Stanford).
As an individual, my decision then is: do I want to choose a place that sets me up for a high paying job and with connections I can rely on for life, and does not take my money for it, while also not having any downsides (that I can see) compared to a state university? Choosing a school for these reasons seems like the most rational choice anyone could make in that scenario.
Please correct me if I am misunderstanding your argument.
I go to Cornell so I want to provide my perspective on this:
1. Do you think you’re going to learn calculus better than you would at flagship state U? - No. There might be a small difference but I would not claim to have received an education that is significantly better than any state university. I was able to take very specific grad-level classes and learn basically whatever niche subject I wanted to - which might be an issue at schools which do not have comparable funding. But overall, not significantly better than a state U.
2. Do you think you’re going to work with famous professor there? - In my experience every student who was competent and wanted to work on a research project was able to - even as soon as their second semester in freshman year (might not get the exact professor and project you want - but in my experience all professors have an incredible reputation and you will gain a lot out of whoever you get to work with)
3. They will hand off all your classes to adjuncts and grad students. - In all my classes, grad students have been responsible for grading assignments and exams, but never for teaching - only the professors teach.
4. Don’t waste your money on a fancy brand - I didn't. Coming from a low-income household, Cornell covered all my expenses and I have not paid a single cent my entire 4 years (and no loans). It is significantly more likely for an Ivy League university to provide full financial aid as they have the endowment to do so.
Additionally, the biggest advantages for me with regards to the brand name were:
1. Recruiting - recruiters from FAANG and other top companies come to you - pretty much everyone I know was going into FAANG or a top fintech company their sophomore or junior year internship.
2. Networking - Since there are so many alumni already at top firms, it is significantly easier to get referrals.
I disagree with you on your claim that the art has zero value - clearly the OP saw enough value in it to frame it and put it up on his wall - he saw more value in this than something he could have purchased because it was exactly as he wanted it. The fact that that art piece might have zero market value is irrelevant as the OP never claims to want to sell them.
I also fail to see why it is relevant to point out that the OP lacks artistic skill - it was the vision that was valuable to them; putting a paintbrush to a paper is simply a medium that they were able to circumvent with a simpler solution.