Besides the obvious advantage that acid-free paper products brings to the photographic industry and the way that they use chemicals that are susceptible to damage from acid full products, there is also other advantages to using acid-free products.
The mere fact that we don't want to come into exposure with acid products as human beings means that we need to be careful about using acid products in general. If acid products are harmful to our photographs in our film, delay probably harmful to us we should avoid contact with with our skin and other sensitive areas.
I think anytime we have the opportunity to use products that do not have extra chemicals in them we should do so. While sometimes this may be costly it's worth our health to take that extra step and extra precaution.