There are those of us who are attached to these things not because of what they are today but because of what they remind us of: our heritage. 
Modern man doesn't wear a chasuble as his outerwear in the street. One has to ask whether the chasuble, the cope, the dalmatic, alb, etc are not throw-backs to a past which is no longer relevant in today's world and ought to be abandoned. No one thinks that the wearing of an expensive, Roman chasuble as opposed to a modern polyester one which probably cost more is going to make any difference to the efficacy of the Mass Pope Benedict took to wearing some of the most beautiful vestments posessed by the Basilica of St Peter's and why not? They are still there, the work of human hands for the greater glory of God but are now never seen.
A genuine case could be made to say our Basilicas, Cathedrals and Churches are out of date and should  be abandoned in favour of simpler more spartan premises.
Where is the line to be drawn?