The people that say that SpikeTV never promoted the show are blind.
Not to mention they CONSTANTLY repeated the show like every night.
They promoted it all over the place. Also ads in comic books and magazines targeting the demographic.
Why was it cancelled?
I think that the show was SUPER expensive had something to do with it. This was the most expensive TV show on the network.
A second season? More expensive and more money. So SpikeTV honestly didn't feel the ratings reflected how much it would cost to keep doing the series.
Something similar happened to That's My Bush. The show cost around a $1 million or more per episode. The show got some good ratings, but not good enough to justify the high budget of the series.
Also, television shows, BETTER television shows are cancelled all the time before they've even gotten a chance to establish themselves. This is not the first time. It won't be the last.
Deal with it.