I'm still a n00b and my accumulation is pretty meager by S&W Forums standards. So far each purchase has had a reason, more or less. I say "more or less" because as a guy told me... "After the first one, the
need is gone."
My focus so far has been HD. That is covered, with backup.
When I get back to work I might look at something like a 98% '40s vintage K22 or somesuch for range fun. Something that's just a knockout to look at.
My wife has serious lust for my RIA Tactical 1911 so I'm fairly certain there is a stainless DW or S&W 1911 somewhere in my future.
Focus? Not really. I would rather have a diversity than, say, "all barrel lengths of a certain model" or whatever.
If I win the lotto I may reassess.