anticipation (n)

As with most pleasures, it's not so much the experience itself as the anticipation that is enjoyable.
The postponement of the film's sequel has held cinemagoers in eager anticipation for several months.
The children waited in joyful anticipation for the arrival of Santa Claus on Christmas Eve, eager to open their presents.
The sense of anticipation in the air was palpable as the audience gathered for the long-awaited concert by their favorite band.
The employee's promotion was met with great anticipation, as it had been a goal they had been working towards for years.