I definitely keep up with my inches lost. I wouldn't care what I weighed if I were 36-24-36
I started at 54- 47 - 65 and am now 42 - 34.5 - 47. I'm looking forward to getting below the 32" that the doctors in You and Waist Management (?) say is healthier.
I weigh also, and it's funny how lots of times when the scales don't move, the tape measure does, and vice versa. I think tracking both is the best way to go.