Wayne,
your point is well taken. If my budget allows, I would get myself a completely separate systems for HT and music. I would've gotten myself a sub that is specifically designed for HT. For music, I would get a pair of Maxx by Wilson Audio for speakers and X600 amp by Pass Lab hooked up to a pre-amp of same caliber. You won't even need a sub when you have Maxx. And how about those silver lace speaker cables by Homegrown Audio Company? Now imagine the sound you'll get from that. Exactly. For many people (including myself), especially those who would opt for Outlaw products, imagining is what they may end up doing. We all have to draw a line somewhere. There is no question that people have different priorities. The idea is to get the most out of the least amount of means.
The old axioms "you get what you pay for", generally, yes. Other old axioms "there are exceptions to every rule" and "some things are too good not to share".
The reason I mentioned the price range of $500 is after noticing which sub Dane has. Let me share something that's too good not to and an exception to an axiom "you get what you pay for". Adire Audio is one of few cases where you don't have to pay a lot to get a lot of quality. Another case being Outlaw Audio. I own a subwoofer by Adire and its the best $450 I've spent. It outperforms others costing two to three times as much. Adire comes in different sizes and configurations - sealed, ported and passive radiator. Hard not to get it once you see the value that Adire carries. Its just unfortunate that not many products are exceptions to that general rule. Nevertheless, they are out there.