I bought a DX set, and would have no issue with Denny opening up, say, 10 extra DX heads for VIPs only who could not order the DX set through the regular order system due to the screwy checkout process (and I agree 100% with greatlakes about it). If you only offer it to VIPs, if you keep it very limited, if you charge the same amount as they would have had to pay to get it with the DX set (DX set price - regular set price), and if you don't offer a certificate with it and don't include it in the figure's box, so it doesn't appear as "special" in some way, would other buyers of the DX accept this? Maybe even offer only unpainted sculpts for that price, so these folks could have the sculpt, but not the paint job?
I don't think making the DX open ended or something like that is the answer, but maybe there is some compromise that would make VIPs who missed out like chili not feel shafted while still allowing this to be special for those who did order the DX.