Seems like the consensus is to keep it in the family.
and I add my vote for that.
I had a Topper 30/30 20 gauge combo in the early '80s that I sold, thinking I could find another one like it whenever I wanted. As it turned out, it only took me about 20 years! I went through a lot of shootin' irons over the years, bolt action, lever, single shot, semi-auto. And even a couple of Toppers along the way, that for some reason I can't now remember (probably rent or something) I parted with - but I eventually got my sanity back, and as of now, my go-to huntin' - and fun at the range - rifle is my 158 Topper 30/30. (See the pic/avatar just to the left)
In close second place is a 357 max Handi gun (converted from 357 mag) with a 20 gauge barrel. Some days I just don't know which one to play with and end up taking both out!
BTW if your son insists on a bolt gun and really does decide to sell it, my son is looking for one
Cheers
Kerry