It appears that either someone has entered some slightly odd data, or there is a bug:

81 @ US$80 = US$6480 (41 people)
88 @ US$100 = US$8800 (41 people)
71 @ US$120 = US$8520 (39 people)
55 @ US$140 = US$7700 (29 people)
45 @ US$160 = US$7200 (21 people)

Meaning that there are more tuners wanted if they cost $100 than there are in they cost $120...
_________________________
Remind me to change my signature to something more interesting someday