Buy Mars OG Exotic Carts Mars OG carts for sale, Mars OG vape carts online, carts take the cake for being one of the cheaper carts to buy from $15 for a gram in So Cal and more expensive going towards the east coast $25-60 a gram. Usually, a full gram ranges from $25-65 depending on which state you live and the seller. While the price for exotic carts seems amazing the trade-in would be low quality, some pesticides, and the uncertainty of what chemicals you may be inhaling.