I would agree. I made the mistake of thinking a case was just a box and just looked for a low a price and decent exterior. Big mistake, the Antec 300 isn't a terrible case, but I regret not learning more about it before buying it, for $37, I guess it wasn't the worst thing, but when you're building, a lack of cable management will drive you crazy.
Completely agree, I had a 900 and the lack of cable management in the case was enough to make anyone go crazy. I got the Corsair 600T instead and it's been worlds better.