Too many people in this country live way beyond their means. Hell I've been there myself. We don't need these huge SUV's or McMansions. Go to Europe and see people living in little flats, small cars. The best part is they are happy. This country is too materialistic. It's great that you have that new hummer but if you took your last breath tonight will your kids be taken care of? Will they remember you or your shiny SUV. Live simple.
You can live on less than $30K, it all depends on your ego. That's my two cents.