if you have plenty DC to get saki, then you're a long time veteran player, should already have several melee-range units such as azami, charlotte, rika etc. so saki is not necessary.
if you're a new player, then of course you shouldn't bother with saki. if you do need range fire on melee slot, the gold/plat sailor can get most job done, enough to guide you to the future black ninja event.