I've not ran into one yet that couldn't be restored to like new condition.
If kept clean a briar or any other pipe material can last a lifetime, even multiple generations.
I believe you are right, that unless just burned to a crisp, that almost any well worn briar can be restored.
But the men who smoke $35 pipes from the rack at the big box store will just buy another one, to use up.
Let’s look again, at my well used Lee Three Star:
It’s strange that if this was a meerschaum, I’d be really proud of it.
This pipe really doesn’t taste bad. I just can’t say it’s really good. Maybe it’s the six inches between my ears that’s the trouble.
But unlike the other two pipes, this one is a really nice, straight grained, early 7 pointed gold inlaid star Three Star Lee. So I didn’t put salt and alcohol in it yet.
And as blackened as this one is, the other two are worse.
If I spent about $5 postage I could find somebody that might restore this old Lee for who knows what charge, to where it would equal the 75 or more other Lee pipes I own that don’t need restoration.
Or I can wait and score another almost perfect Lee for $25-30.
Restoring this old Lee, isn’t economical.
Now, had this been one of the two $15 English pipes that Lord (soon to be Baron) Inverchapel bought on his tour of the western states in 1946, and there was sufficient provenance to show it came from the estate of his shockingly young and deliciously beautiful Argentine socialite second wife, then it might make sense to spend what it took to make it new.
New English made luxury pipes cost maybe a thousand dollars.
A new old stock Lee, a mere fraction of that.