I see what you're saying but respectfully disagree, peruse LXForums or one of the many modern Mopar ones, plenty of $$$ builds going on, plenty of money being spent on new HEMIS. Proof is the numerous supercharger and turbocharger kits offered (6-10K), if there wasn't a market they wouldn't be there. If someone came out with a reasonably priced ($2500ish?) Gen III Hemi block with upgrades previously mentioned (4.2"ish bore, maybe a raised deck) they would sell. Like I said earlier I'm going old school because of cost and it'll make what I need,but it will be replaced by a Gen III in the future, probably with forced induction.
I'm not against an aftermarket BB again at all, more options the better, I just think we're putting ourselves further behind by not getting a Gen III option.