I don't think the average fatal accident is going to average even 5 million, I am just saying if it cost 20 million that's still not a deal killer. Put in other terms Valet Parking is 5+$, but 'go park' is ~5 cents. In ~15MPG city / stop and go traffic that's 3.75$/hour to not pay attention.

Hell go to sleep and wake up in another city 500-1000 miles away without going to the airport or needing a rental is a major benefit even if your not saying money.