There are advantages to starting with cuttles but one of them is not cost. Keeping a saltwater aquarium is an expensive hobby and you need to research the on-going costs (special fresh water for filling, water top offs and mixing your saltwater as well as purchasing artificial salt on a regular basis to do water changes, food), in addition to the cost of the initial setup. Hatching cuttles from eggs has been the most successful way of raising them but the food cost is very high for the first couple of months.