DCC doesn't actually appeal to be to be honest, I've never found 19s that hard I found 18s on bridgestones the hardest. I'd only want the performance pack for the Reifnitz, but even then it's not a deal breaker as I'd just buy some BBS' again or as most of you would know with my gti change alloys 5 times in a year...
Will, have you tried 19"s on a CS or TCR, they have upgraded, as in slightly stiffer springs than a regular GTi.
Dcc certainly seems desirable for many buyers, VW even fitted it to the CS-S as standard equipment, what were they thinking?
DCC is not the be all & end all of suspension, it's nice to have some adjutability, personally I would say a high end coilover suspension would be better, but that was not offered by VW and is a fairly niche aftermarket modifocation among the whole of GTI owners.