Cylinder head dyno shoot out

I bought 2 W2 single plane intakes used right here in perfect shape for less than one brand new rpm airgap. Just sayin
Can you do that at anytime though? That's the problem. Deals on the W2 stuff can be had but some of them are sour (worn out crap) and they aren't on every corner, or a phone call away like Summit or other suppliers are. I'm all about hunting for deals, but the question is why the pushback on offset rocker heads and the real availability and cost is part of it. Once all those W2 deals get snapped up, you are left with the Indy 360 stuff which is great, but not inexpensive at all.