I'm wondering about fitting a set of Marchesini magnesium wheels to my 916. It's only a very fair weather bike and only gets ridden a few times a year. I spend more time working on it than riding it but do like to buy myself presents for it when money allows. It is fitted with alloy Marchesini 5 spokes at the moment and I was wondering if magnesium wheels are worth it, do they make that much difference? I know they are high maintenance but I am willing to get them checked over before fitting them.What do you think