Speaking as someone who has owned a number of sports cars with manual transmissions, I can tell you why I finally made the switch to automatic: Adaptive cruise control in stop and go traffic. I used to have to deal with a six-speed manual transmission in stop and go traffic for an hour every day, and it was pure torture. I mean, sure, it was fun for a weekend drive in the mountains, but it sucked the rest of the time…
To each their own, but stop and go traffic does not exist in the absence of stoplights if you leave adequate space in front of you. If you tailgate, ride your brakes, or have to stop completely you are contributing to traffic jams behind you. I drive a 6 speed in one of the worst traffic areas in the US every day.
Yeah you can smooth things out and inject a bit more zen into your experience by accelerating and decelerating more gently and leaving a larger than normal gap, but stop&go simply exists and is a pain even with an automatic.
Adaptive cruise is a godsend.