says the person who cant afford fcp tickets.
anyway, back to topic. one seed costs 75k (if you buy them 4:1 and 1 tok = 30 mil). its not such a big deal to spend some zeny for bottles too.
also, creators dont use bos/converters. this saves money. i dont see any reason they should become cheaper to use. additionaly as it was already mentioned, their AD skill is the best stun lock in game, and they can always switch to bolts or mammonite if they are out of bottles. cheap enough.