>>392301Normally you would just save your essences for an event where you really want something, trying get enough saved to force a pity drop of something you want before burning as much of it away as you need to get the drop. But if you're planning on buying the essences anyway then go ahead. The lantern deal is the same inspiration price as buying those essences normally, but with the extra skins/emotes thrown in.
So only take those deals if you're planning on spending the inspiration to get the essences anyway.