In this context, let me remind you all that few more sectors have had massive sales which include the birth control methods - people are at home having nothing to do, sets eyes on their wife and boom 
This BOOM doesn't work if you stayed closed home with kids and you and wife are just exhausted from kid's entertainment plus education. Everything you both desire is just fall into the bed and to nobody bother you
About wedding rings: well, for those ones who spend tons of money for that it should be an opportunity for some extra money in the case of resale.
I do not understand this "fashion" to buy exactly gold and diamonds to show the love. To me and with ring is just a symbol for the ceremony, since that we both do not wear it.