Thumb Score: +1

Amazon currently offers a roll of 3M Utility Duct Tape [amazon.com] (2929 Silver, 1.88 in x 50 yd 5.8 mils) for $ 5.77 (one time order) w/FSSS for Prime members, or $ 4.90 if you have 5+ subscriptions.

Best price according to the camels.