. . . I used to use Monoprice cables previously, but developed a severe dislike of them because the cable they use is far too rigid, and the the plugs dont have much bite to them.
It's better they have less bite than too much IMO. I remember running to Rat Shack and picking up a pair of Monster's for $8 when an Emotiva amp that I ordered came in. One RCA plug was machine wrong, wouldn't fully go on and ripped the jack out of the amp.
Personally I love locking RCA plugs myself (one reason I have some Viablue IC's), but the cheapest I can find plugs is $20 for four shipped then roughly .80 per ft of cable. Compared to the $2.50 or so per monoprice cable the choice is pretty simple at that point.
Still - if anyone knows a cheaper supplier of locking RCA plugs could you PM me a link to them?