I do agree that as a whole, things have gotten too far and we at a point where returns are diminishing. Like it or not, cars ARE tools/appliances. If you could chart a person's automobile investment vs return on investment over the life of a vehicle, between a new vehicle and a 2000's vintage...
The way they do things now is better than it used to be. At least failures are relatively isolated.
Remember back in the day when all you had was a PCM/ECM and a BCM controlling everything? If one goes down, you're stuck. Sure, that can technically still happen now if the failure scatters the...
Not many special tricks here.
If the head is aluminum, welding will be the way to go here, given the tight space.
Else, you'll have to find a way to make room to extract with drill/tools.
You should probably also run over to another thread to ask a new minivan owner how it performs on the track. Truly curious! Driving a minivan on the street involves very little curve carving and is VERY slow.
Just so you are consistent.
If you drive an older vehicle and are concerned about that, rentals are cheap and easy enough to come by.
Not sure what you are arguing. Many ways to skin a cat, here.
If available, I find Magnaflow is consistently superior to pretty much all aftermarket options, and even better quality than OE in the applications I've used them in.