Since we are saved by God's grace through faith in Christ, we hold on to the sacraments, altars, liturgy, vestments, etc. What may appear as traditions of men to some are simply means through which we are gathered together in Christ and nourished in His Word and Sacraments.
We are conditioned by society to consider that that which is handed over to the Apostles and to us are man's traditions. We blind ourselves to put trust in "innovations" that do not seek to uphold the things of God but which say instead "Hey, look at us!" Are not these attacks on the church and the liturgy and this turning of worship into something pleasing to us, really the ideas and traditions of men? Liturgical renewal is needed now more than ever.