My first experience with Bitcoin was when my computer was infected with Ransomware and the hackers wanted the ransom to be paid in Bitcoin so it could not be traced. I realized at that time, if it were not for Bitcoin, Ransomware could not exist. So I was not a fan right off the bat.
Then when I started looking into it. I realized it was just a big Ponzi Scheme that only has value as long as new investors(marks) keep putting in new money. Once the market reaches saturation and there is no more new money coming in. The whole thing collapses.