Scales are so important when it comes to losing weight! I know when I first started losing weight it was hard and that was because I had no idea how much I was eating and how much I was weighing! Believe it or not that scale is your best friend. If you are serious about losing weight get both a weight scale and a food scale. It's going to be your best friend in losing weight.
Obviously a weight scale is important as we do need to know if we are on target when losing weight. the main thing on a weight scale is if you're going to weight yourself do it when you first wake up in the morning before you eat anything. That is your real weight. And honesty you don't need to weigh every day. I weigh once a week usually on a Monday because that is when I start my workout for the week.