Is $2,500 for dual SVS PB3000s a reasonable price? Only drawback on these is they won't match my Ultra Towers, only come in black ash. I could get the PB400s for about $3,500. More I read about those Monolith 15s, more intrigued I'm becoming. I imagine head to head the Monolith 15s would emerge the winner AND be a little cheaper in comparison to the 3000s?