The thing is, 40 hours less my hour lunch a day ends up at 35 hours, which over 7 days is only 5 hours. To me personally I would prefer to work 5 hours a day every day than be getting up at 6am to get home for 6pm, and forget it if I want to do groceries on a night, I'll be getting home in time to have a shower, read a chapter of a book and fall asleep.
My weekend work usually averages around 4-5 hours a day, I get to relax, I get to run out and do groceries and don't even notice having worked.
That is if you are waged. If salaried your lunch break is supposed to be built into your renumeration. But I know plenty of people taking 15-30 minute unpaid lunches verses an hour unpaid lunches just so they can leave the office in a reasonable amount of time.
My weekend work usually averages around 4-5 hours a day, I get to relax, I get to run out and do groceries and don't even notice having worked.