A new digital scale

Even though I went to the Dr. last week and her scale registered me at 154 like my home scale does...I went out and bought one of those new digital scales. Either that thing is wrong or the other two scales are wrong cause I'm REALLY liking the numbers on this new scale!!! My husband brought up a 20lb weight to check it's accuracy and it weighed 20lb 2 oz - that's close enough to me. Therefore I'm going with the new scales reading of 148.5 - which is 6lbs lighter than the doctors scale and which means I only have 2.5lbs to go to get to my goal weight of 146 (according to Spark People) - woo hoo - I'm going to try to walk at least 1.5 miles each day that I walk this week...I've had the last 2 days off from walking so I've got to keep myself in the groove so I don't quit all together...it's SO easy to do that!!!