While I agree, I still have to consider cost. If money wasn't an object I'd be running an aluminum 427 Ford dart block.
If I can find an aluminum 6.0/6.2 that's not dumb in price, trust me I will run it.
If an iron variant comes across and it's a good enough deal, I will probably run it.
In the mean time, I'm looking at a few different avenues. Even Ecoboost 3.5s or 3.7s and adding turbo kits.
But total cost does play a role.
Trust me I'm a cheap ass, like you said it may just be a regional thing but LQ4s I really do find every time I go to my nearest junkyard up to a month ago, same place I actually got my Mach 1 DOHC from (which was $350). I considered buying one just to have one for a while.