Fixed asset decisions are rare, consequential and painfully hard to unwind. Most organizations do not need a full-time expert in them — they need one who picks up at the moments that matter and is useful in the first five minutes, not the third meeting.
That is what an advisory relationship buys: continuity. Someone who already knows your systems, your policy, your history and which decisions were made under duress, so you are not re-explaining your own environment every time something surfaces.