I wonder to what extent collaborative consumption will unveil the true cost of expensive items. That is, the cost of a car = car + maintenance + gas + parking

I wonder to what extent collaborative consumption will unveil the true cost of expensive items. That is, the cost of a car = car + maintenance + gas + parking + ... When people buy or use a car, most do not hold all of those costs in their head at once. Same goes for houses or other "shared" targets, but the cost of sharing is readily apparent at the moment you do it (having to find your car not where you left it, trading keys, etc).