SO has flat rate repair on many of their products. I have used it several times and have never got back anything that looked used at all.
I sent in a battery charger that I bought new many years ago. It was something like $90 flat rate repair. The cables had lost their coating in a few places, one switch was busted off, could see the meter because the plastic had faded. It came back looking brand new.
Have also sent off corded reel lights, and much more.