I just got in my latest order from a theatrical supplier. I was interested in the prices of their 12/3 SOOW as I needed 10 x 10ft 2P&G extensions. I found it interesting that 12/3 SOOW is $1.25/ft with 2P&G connectors at $5.50. Price for me to make one 10' cable: ((10' x $1.25/ft =$12.50))+(2 x $5.50=$11.00))= $23.50. Price of one prefabricated 10' cable: $20. I don't understand how that works out? There must be a mistake somewhere in there. What prices do you guys encounter from local dealers? Is this price breakdown typical?