From the "don't scare the user" point of view, the best is a template
substition that hides *everything*, like if the first thing you see is:
{{Paris infobox}} '''Paris''' is a city in France that...
Of course, many purists hate this apparent abuse of one-use templates...
Wouldn't that be a great use for subpage-templates? Have the Infobox at Paris/infobox and just include it as a template.