I am in the same boat wrt to not being physically able to use the larger molds for extended periods. I miss the productivity of my old H&G wo cavity but it not the effort needed.
After selling some "useless" toys I invested in a Master Caster. 350-400/hr with a two cavity in that machine is good enough for the amount of shooting I do now.
I am too lazy to use a normal two cavity mold as the productivity is low. But I only shoot cast in pistol calibers so that factors into it.
Like in most areas of this hobby, there is no one perfect answer for everyone.