Should I get my brakes replaced?

What is your question?

I have 68,000 miles on my car. I recently took it to Les Schwab to have it aligned and asked them to check my brakes. They came back and said they were worn but not terribly bad. Should replace them in a month. I do not have squeaking, grinding, or anything like that. Is it okay to wait a bit longer until I have a bit more $$ and the brakes make a noise? Or should I do it now when I have to buy two new tires too?