futures market on enchanter supports

someone asked me today why i took futures market (i always take futures market on my two main enchanter supports) and it took me a bit to answer. I take fm because rushing items like idol and crucible are usually super important to my lane viability. The person reminded me that it costs me money each time i use it but after some consideration I still decided that fm is a solid choice.

FM reduces the initial purchase gold required by: (approximate fm values vs time are factored in) idol: 22% idol + boots: 17% crucible (assuming idol also incurred a 50g fee): 8%

obviously idol doesnt reduce the upfront cost of crucible much but from my experience it often allows me to save a back or time my back much more conveniently and in the current state where supp gold item generation was nerfed by about 20% that matters now more than ever.

What do you other support mains think about fm? use it or lose it or somewhere inbetween?