Interested of what people think.

Recently I commented my idea (and what I did) on someone's question about asking for money instead of doing a registry for their wedding. People that I asked that were guests at my wedding didn't complain at all, actually thought it was cute and very nicely put. Now just listen. With times changing and how things are done now a days. Things regarding weddings are almost no longer traditional. One for instance is not living together before marriage. That tradition is almost gone, for some people yes it is still there. Church weddings are still there but not as much as they used to be. Anyhow. With the registry thing. There are now cute poems with very good writing asking for a donation to honeymoon or their home instead of providing a registry, mainly for people that have lived together for quite awhile. My question is, in your mind is it tacky to ask for cash donation? Keep in mind the changes from then and to the now. Comments are appriciated too.