If I'm underestimating the cost of college then all the more reason to spend the money on something else.

For all I know a 4 year degree will cost $500k in the next 10-20 years. I have 4 kids. Do the math.

It already costs nearly that at some 'elite' universities. And it's not worth the money if you purely consider it as a financial investment in most cases.

The tickets are a drop in the bucket of the total cost for a traveling family vacation. And it IS hard to save and spend at the same time.

Yup. The airfare, hotels, restaurants, and souvenirs cost an absolute fortune. You can do alright with their budget friendly resorts but still. It's so much fun though.