Is it though? Worst case call road side assistance and what an hour or two. Now if you live in the back country, okay, but for the majority of people it’s just an extra 40 pounds to lug around to use once or twice.
Sure, as long as you have a charged, working cell phone and can afford to pay for roadside assistance. If your phone died or your bank account is in the red, you're screwed.
Actual worst case, you're stuck on the side of the road god-knows-where, for god-knows-how-long, hoping that someone will drive by and have the decency to stop and help.
I love having a spare tire, but some people are STUPID about them. Especially those dumb donuts. They will drive on them at excessive speeds and for obscene amounts of time. They are kind of a public hazard. Full size spares are cool though.
Actual worst case, you're stuck on the side of the road god-knows-where, for god-knows-how-long, hoping that someone will drive by and have the decency to stop and help.
I think I'll buy a car with a spare tire.