Is Ivy League education still worth it?

Those successful people are the rare exception, however. We hear of people like Bill Gates who either did not enroll in a higher education program, or dropped out of one, and made a fortune - and it creates the illusion that higher education is now obsolete. But in reality, the overwhelming majority of successful people did enroll in a higher education program; even the current US president, however much it would be unbelievable given his oratory skills, did receive higher education.

"I have graduated from Harvard University" is still the kind of phrase that gets you through a lot of tough interviews and increases your starting wage by a factor of 2 or 3. Even if the education itself has little to do with your advertised set of skills, it is a great advertisement in itself.

Depends on where you want to go.

For a well-paying industry job, just about any decent state college will give you the education you need for a fraction of the price. Admittedly, the name brand of an Ivy will make you stand out for your first job, but only your first job. After that, your alma mater becomes irrelevant and your work experience matters more.

However, if you're going for a position in business or politics, an Ivy will provide you with the necessary connections to climb the ladders. As said before, many schools can provide an education that matches up with, if not surpasses, Ivy League standards. Thus, the selling point of an Ivy is its elite network.

By "successful people never going to or finishing college," I suppose you're referring to the likes of Mark Zuckerberg and Bill Gates. There's a bit of survivorship bias in this thinking. They dropped out not because the education there was obsolete, but because they happened upon an opportunity that called for them to drop out. If they didn't get that opportunity, they would've stayed, graduated, and pursued a career like normal people. A regular dropout would likely lack the credentials to get far.
On the contrary, there have been successful people who have finished their Ivy education. For instance, Bezos graduated from Princeton and worked for several years before he decided to start Amazon. The Google founders (from Stanford, but close 'nuff) actually went as far as to enroll in PhD studies. Their research project led to Google, and their professor hooked them up with investors that got them into the business world.

Bottom line:
Top colleges didn't make them; they made themselves far before top colleges chose them. The top colleges provided them with connections and prestige that helped them succeed. Albeit more difficult, this is certainly doable without going to a top college.
An Ivy is nice to have, but no need to make it the die-all end-all goal.

Just speculation though. :P