Depends on the drivers and the passengers. But there's a difference between a 5-10 minute restroom stop and a 30 minute recharging stop.

Random thought- the drivers on long distance trips self-select for people who like to keep going.

The difference is small if you take the whole trip into account. Assuming one stop, over 6 hours of total trip time, the difference become less than 5%.

I wonder how much a 10 minute stop charges a Tesla S. Probably a third. Once the superchargers become common enough, you can do several shorter stops instead.