Wow pretty pricey for cubes. Like froghog said I'd pay like 300ish for one but not any more. I mean you can get single towers and double wides for like $400-500. No doubt about him being legit but I'm sure he would sell a lot more if he lowered his prices a bit.
Its a fresh listing, he is known for lowering prices fairly quickly if things dont sell so keep an eye on them...