The thing I liked about this Inside Retail article was that is shows that niche retail is still going strong.  Then I saw that figure of "$400 billion global pre-owned watch market" and I'm thinking it might not be so niche (or it might be a typo...!).  I guess luxury watches are probably not that different to collectors than classic cars or antiques, half the fun is in the hunt.  In any event, the joy about niche players is that they are can be focussed and close to their customers.  And more often than not they are dealing with a "passion product."  All sounds like fun to me.