What brand protein skimmer?

[banditpowdercoat]

I have to ask, what makes a skimmer soo damned expensive? I mean, I have never seen a junk one yet, let alone a good one, but by looking at pictures, some acrylic tubing and a pump? I am an extreme DIY person and hate overpriced things(the if you need it, your gona pay attitude) with a passion, guess I just need some explanation why they cost so much.