Does it really have to be Carbon ?
In general, the difference in weight between the various constructions is usually not particularly large. This raises the question of where exactly the differences lie.
Carbon is mainly used to make the boards more resistant to the forces exerted during jumps and the associated landings. The sport is developing incredibly quickly, presenting manufacturers with new challenges. If you don't want to jump high and are more interested in freeriding and downwind tours, then the Carbon alternatives would be just as ideal. For high jumps and hard landings, the Carbon variant is the way to go.