Oil Catch Cans. Is It Worth Fitting One?

[steamship]

I keep reading about various ways of cleaning the internals of engines (carbon cleaning, seafoam, Terraclean, walnut grit) due to the buildup of carbon, which has been made worse in recent years with the re-circulation of exhaust gases through the system.

I'm just wondering if it would be worth installing an oil catch can, to at least try and capture some of the muck that is being re-circulated back through the engine, rather than it going through the system and being baked onto the engine internals.