Honestly, thanks and no thanks for confusing answer for question no one asked.... especially not the troll OP.
But on subject matter of $500 subs - If PE/Dayton somehow could mustard $150 12" ported sub which doesn't suck, imho if using similar pricing methodologies and manufacturing locality, all of the sudden It seems like $500 sub in comparison to $150 could suck even less, since you have more room for more expensive and higher quality parts.
I'm not here to tell you how to run YOUR business. I know nothing about it. It just seems to me that with different mindset, a profitable $500 sub is very possible, just ask your competitors.
It's also perfectly fine not to make cheap cookie cutters, just look at Bentley - they stuck to only luxury models and sold whooping 2.5k cars in US last year. No reason for them to try to make 4 door family sedan. They are doing just fine. In comparison VW's slowest month is typically a Jan for obvious reasons. They sold cars double that number of Bentley's in one slow January week alone.