V, I like your comment about defining the set ourselves.
To me, a vintage baseball set is complete with base and no variations.
A modern baseball set such as 22 Topps is complete with all base and no sp.
A team set is complete with all single cards of that team, but leaders cards showing multiple guys on multiple teams do not count. An 'enhanced' team set to me is where I seek out those multiple player cards....I am starting to work on that side some recently..
In the end, Each of us can decide which ways work for us. And it is cool to go a different way with new goals sometimes..
Mark