Right now I'm working 6 twelve hour shifts plus whatever extra is needed. So 72 hours plus. But we're in the middle of a product launch and it will slow down one day. Not as soon as my boss thinks, but it will slow down. Then we will get in a new product and start all over next year.
My last job was 40 hours a week on salary. Job before that was 70 hours a week on salary. Current job is 70+ hours a week hourly. Hours and jobs change. Sometime it works out well and sometime not so well. I try to just enjoy the benefits of whatever the job has to offer. Right now that would be the money! In a few years who knows? The only constant is change so just go with it and make the most of it.