Exactly this. Yes, Bitcoin is having another bubble moment because folks are trying to get rich quick. But, the underlying technology—the reason why Bitcoin has stuck around despite countless "deaths"—is that the existing financial system is a glass floor on the verge of shattering. We can live in denial all we want about what that means.
Bitcoin, though not perfect, is the first viable solution we've ever seen as a means for preventing financial corruption. Not to mention, it enables banking access for billions of people who don't have it. It makes transfer of large sums to _anywhere on the planet_ inexpensive. It's divisible down to 8 decimal places (a satoshi), making it a great fit for micropayments. These are just the top of mind solutions.
There are ideas we haven't even thought of yet. Bitcoin is programmable money, meaning the possibilities are seemingly endless.
Absolutely not true. I paid $0.40 cents on a $5.00 transaction yesterday that was confirmed within an hour. I could've easily paid the same $0.40 cents to move $50,000,000.00.