A little fog light help?

Hey all - I could use a little help. Our '04 Trailblazer lost an arguement with a few guardrails a week ago. :frown: Lots of broken plastic. I do have a question about fog lights - GM's are 92.00 ea, [I need both] Online, I've found them from 25.00/ea to 55.00/ea. Are the cheapest ones junk? Anyones input appreciated, thanks -