My wife supports my gun purchases most all the time.

I am fortunate having her as my friendly

and supportive partner. I think that is partly because I just plain 'ole talk to her about what I'd like to do in stocking my gun cabinet
before I do anything. Years ago when she could write and see better, she handled the checkbook (budget) far better than I've ever done. Since I took it over, I chat with her about our budget planning, needs, etc., each month. That's also because we're both now retired, and the fixed income warrants that approach.
She likes our communication. Like I said, almost always I get the "OK, fine" on my next gun purchase. From time-to-time, she might ask if I really do need another firearm. So I sip my double mocha coffee out of my Henry mug, smile as she and I finish our chat, and go back to the drawing board.
It's all fun.
BTW, if she's right and the budget doesn't work for a gun purchase, I go along with that. Your opening sentence is true for me also: "I don't need this rifle...." or revolver, or knife, or whatever. It's just my retirement hobby and I can easily live without more added to the gun cabinet or knife case.
I have my Henry SGC, and that keeps me very happy!
I'll close my rambling by wishing you, as you asked,
"Good Luck" on purchasing your Henry Long Ranger!!