Some people like Caricature others like Relief or a variety of other styles. You can use all sorts of tools to carve and after a while you have your tried and true favourites.
Sometimes life changes the tools you use. Arthritis or injury or other things happen and you may be forced to switch from hand tools to power or even the other way.
At some point the surplus tools start to look like clutter and you have the option of giving them away to other carvers or selling them. It all depends on how urgently you want to sell tools or carve as to how fast you get rid of them or keep them stored in a dusty corner.
This of course is a great opportunity for newer carvers to buy some fairly decent tools at a reasonable price. But as always you might want to know what you are looking for and what you plan to use it for before you buy just anything.
This rambling has been inspired by my clean out of my cramped carving space. I am boxing up a variety of tools to be sold or otherwise and after a time if I do not go tearing through the box to retrieve a tool as vital to the continuance of a project than they will leave with no regrets. I just hope that they are treasured by the new owner.
I won't list tools in this forum but if you know me and might have a need contact me and maybe we can make an exchange that suits us both.