You hear every nuance of voice and instrument, get treated to more personal anecdotes, and can ask for your favourite songs. Socialise with the artists and your friends over supper then enjoy another set.
Musicians love house concerts too. People actually listening to their finely crafted art is a treat, complemented by getting to personally interact with lots more fans.
Of course you spend time in organising and running the event, but the artists get paid by the donations of your guests.