I worked there for a few years in the early 2000s and it seemed like such an unremarkable company that wasn't going to go anywhere. The stock was always around $20 and whenever it went up, Bezos usually said something that investors didn't like and drove down the stock price (free shipping, search inside the book, etc).

Then there was the Segway deal where I amused myself by checking the orders database to see how many they sold (because the numbers were so small)

If you told me back then that the stock was going to $3000 some day, I would have stuck around for longer.