I think for some people it can become a real problem, and it's no joke - serious stuff.
http://resources.depaul.edu/financial-fitness/tackle-overspending/Pages/reasons-we-overspend.aspx
(from the link)
"....Compulsive Spending—Is your spending an addiction?
People joke about "shopaholics," but true compulsive spending is a serious disease. While it is often a problem associated with women, there are no gender barriers to the condition. Look for warning signs:
Are you buying things you never end up using?
Do you spend more time trolling for deals than doing your homework or hanging out with friends?
Are your credit cards at their limits? ...."
Internet forums promote this behavior to a degree. Someone buys something and gets 'congratulations' for it. People start threads about what is your holy grail (material goods).
Produce/consume needs to be balanced with other activities and thoughts to reduce the chance it will become a problem.