Opinion #1...
They are ALWAYS a good idea.
Pro - look great, really set off the car. couldn't imagine my car without them again.
Cons - $$$ They can get really pricey if you can't find them in a JY. Ebay goes around $300. cheap on the forums in $160-250 or more... possibly will have to be painted depending on the seller.
Either way, if you like them as I do... buy them once you find a good deal.