if the gb costs 61k fp to lvl, and you can get a 50% return on the fp you invest, the it would cast you 30.5k to lvl. which is less than the 48k you put in at 1.9.
but, the problem is, the time. if you get 800fp per day then it would take 60 days to get 48k, and 76 days to get 61k, so it's...