I have never actually compared the SoundQuest kits to true 0 Gauge, but I would guess it would be around 1-2 Gauge of wire. Even then, going from $40 to $150 would not be worth it when you look at what you would gain for $110.

Monster Cable is overpriced and you will not get anything extra out of them. Last time I looked at a dealer sheet, Monster Cable is marked up 80% from dealer cost to retail. Not to mention the mark up from cost to dealer. Needless to say, there are as good or better products for less.