How much ignition coil do you really need?, at least w/o forced induction Options

[VavAlephVav]

as I peruse the ignition coil section of the parts catalog I begin to wonder, Just how much coil do you need for a stock setup?
I imagine that the really cheap are probably really cheaply made, and I could believe the ones that are about $60 are a higher quality.
But the top of the line ones are like $100 more. yikes.

So how much coil do you really need, or can you actually put to use on a stock motor? (5s-fe) and I have federal emission setup with coil in the dist cap.
I imagine that maybe the turbo charged ones could use more

so if you check www.rockauto.com , at least under the 94 2.2 you can choose from

Ultrapower for $20
http://www.rockauto.com/catalog/moreinfo.p...&cc=1274307


Standard Motor for $37
http://www.rockauto.com/catalog/moreinfo.p...&cc=1274307

Delphi for $55
http://www.rockauto.com/catalog/moreinfo.p...&cc=1274307

AC Delco for $63
http://www.rockauto.com/catalog/moreinfo.p...&cc=1274307

And then the Bosh coil is $130 WTF?
http://www.rockauto.com/catalog/moreinfo.p...&cc=1274307

So how much coil can you actually get performance from with a stock 2.2L?

[VavAlephVav]

pretty much what I'd guessed, but I figure the $20 one is made by 16yo girls in Indonesia for $0.05 a day.
which is enough reason to get the $40 one