What if airlines charged by passengers weight? Samoa Air is doing just that…

I think the concept sounds a little crazy, but yet Samoa Air makes the announcement to charge $4.16 per kilogram for the passengers weight with their luggage.  The airlines suggests that it encourages their passengers to be healthy and watch their weight.  I’m skeptical at best, and not because I’m over weight.  If anything I never check and my luggage never weighs much at all.  I like the idea of charging for bags by weight and size maybe…but certainly not the passenger.  Just my thought…