I think it was inevitable that Thermaltake would produce "watered-down" versions of the Level 10. For every Level 10 that the company would sell, it would sell 100 Level 10 GTs (I am obviously hauling this number out of my ass, but it wouldn't be far from the truth). You have to be a special person to want to spend nearly $1K just for your chassis.
And after building my mom's rig with a Level 10 GT, I am definitely glad it exists. It's sweet as hell.