There are only 365 days in a year, unless it is a leap year, which only adds one more day. As the calendar of Christian celebration accrues more not less saints (cf. the addition this weekend past of Mary McKillop as a saint in the Roman calendar), or, if one is an NZ Anglican, more not less worthy people from our past to remember with thanksgiving, it seems only a matter of time before one's liturgical calendar is void of days to which nothing special, other than God's grace and goodness, is attached! Alternatively, since some days already have multiple possibilities for special remembrance and celebration, we face working through calendars which give us no great guidance as to which on the list for a particular day has priority in celebration over the others!
My general sense is that no great pressure should be felt by worship organisers to celebrate saints days and the like. The days we all should celebrate are the great days of our Lord's own life, death and resurrection, as well as the coming of the Holy Spirit at Pentecost. Everything else should be optional. What do you think?
Of course even my approach leaves plenty of room for debate over certain days. Is the Annunciation (25 March) a day in the life of our Lord (i.e. his conception) or a Marian festival?