I must admit that I do not get too "fancy" anymore. I do get bored sometimes making the good old reliable recipe with just a small range of EO's and colours, but also found that a lot of the more pricey oils and butters really did not add enough to justify the expense. Same goes for a lot of the additives.
I used to sub AV juice for half the dilution water in my liquid soaps. This is soap I use every day, and honestly, I don't think it added a thing to the soap. So, I stopped using it.
These days, costs being what they are, I save most of the expensive additives, butters & oils for creams & lotions, where they actually seem to do some good.