Parties full of EMH's delivering sparkling wit and repartee amongst themselves while other EMH's in butler's attire pass round canapes and trays of drinks (of which most are holograms other than the ones being passed to me). There will be so many of them they will spill out upon the lawn. And of course, the entertainment is EMH's singing opera.
Each one would think HE was in charge!
Maybe if I had a Seven of Nine hologram, they could sing duets. The two actors harmonized very nicely.