I thought so too. I listen to mostly hip-hop, reggae, and dancehall and I like bass so I asked the guys what set-up would be best for my application. The unanimous decision was a vented enclosure. I saw this one in the classifieds and I had to get it.
I was thinking of making a box but I dont have the skill, tools, or space. So this was right up my alley. I think the dude who sold it to me just enjoys building enclosures because after supplies and shipping he cant be making that much off this deal. This one was already made but he will build them to order as well.