You may be right. My wife tried to get me to patent a portable telephone that I built the OS and HW drivers for and two EE grads did the hardware design. It contained an interface that worked like much the iPod, a database that you could scroll through and auto-dial like all cell phones now do, and had a voice activated command like hands free sets. She was convinced it would be a money maker. This was 1986. I said: "who the hell wants a phone in the car?". OK, I'm a moron.
If she brings it up I can always point out that her company offered her 150 Microsoft shares in 1987 or a cash bonus. I said to take the shares - DOS is the dominating PC OS, PC are getting less expensive and very popular, the development tools are good, and the Office software is getting popular. She wanted to take the kids to Disneyland. She won. A quick internet search says the stock is worth about 95 times what they were worth in 1987. Close July 31, 1987 $94. Adjusted value .27. Today's adjusted value 25.56. So, 150 * $94 * (25.56/0.27) = Today's value: around $1,334,800. I sleep on the couch when I use that, but I never lose a 'best judgment' argument.