I didn't take my measurements right at the beginning but I did take them after I'd lost about 10 lbs. So I have a pretty good indicator of how far I've come. I'm actually about due for another round with the measuring tape as I believe I've lost a bit of weight since the last time.
I do find that the measuring tape is more accurate in showing the weight loss than the scale since it doesn't flucuate as wildly when there is a little water retention or constipation, which are all too common when losing weight as we all know.
I also have a pair of jeans from when I was at my heaviest that I've kept on the top shelf of my closet to pull out and try on when I want to boost my self esteem and remember just how far I've come. Not only can I pull them on without undoing the button and zipper, but I can stick both my arms inside with room to spare! And this with only being just over halfway to my goal. It seems so much more concrete to be able to see with your eyes rather than just a number on a scale.
I also take the measuring tape and put it around me to the measurements I had when I started and compare my various body measurements to the old marker and see how much room there is inside the tape now. That is another huge indicator of progress.
So I recommend measuring to anyone whether you are just starting out or are already well into your weight loss. It's never too late to benefit!
IT NEVER GETS EASIER - YOU JUST GET BETTER.