It's just a matter of preparedness.
If leaving your local area, it is best to have the spares on hand in case of unexpected failure.
You can't just pull into an AutoZone or other auto parts store and expect to find them.
I don't carry spare parts with my Hyundai Santa Fe when travelling as it's parts ARE readily available.
I'd rather carry my little bag of parts in the box under the trunk than get stranded in the middle of nowhere with no spare parts.
It's a small price to pay for having such an unusual and exotic German sports car.

PS: Having owned an MGA, Triumph Spitfire, Nissan 300ZX and Corvette Stingray Coupe, I prefer my Crossfire Coupe!
Cheers,