I like my seats but I have a busted disk in my back and there's just not enough support, not to mention that if I ever get better enough to go racing again I'll need some better side bolsters.
The corbeaus I was looking at have adjustable lumbar supports and are a true racing seat. That way I can justify them as a health expense. lol
From what I've seen, you can get roush take-off leather for cheap. It would be a ***** to install but not a bad improvement for $400.