To my mind if it was for me the question is not the need or even the want of a PCP Air Rifle, New or Second-hand, for myself it comes down to my family responsibilities and if the old pocket is Full enough to grant myself one more luxury.
Your money, your want, your need, Good luck with your question, but I have a feeling that you made your mind up already.
Just my way of looking at the question posed. I do like others sometimes let my Heart overtake my Head.
All the best