You could argue that pretty much anything is a luxury. (The GOP considers health care to be a luxury, but that's another thread
It's realy just a choice of how to spend your money and your time. I choose not to spend my precious free time vacuuming and cleaning bathrooms.
It's also a contribution to the local economy. The service I used hires legal workers (if that matters to you) and I almost always have the same three lovely ladies who seemed quite happy, so I know they're not churning through workers.