Cost of chroming valve covers?

Powered by ford valve covers are quite common and come in all sorts of styles.

It's been my experience that it's far cheaper to purchase new cromed valve covers than it is to have your existing ones cromed.

Clear valve covers do exist. Tho I think they are pretty lame unless it's a show only car. With the car running there would be so much oil flung onto them that you wouldn't be able to see through them anyway. Plus with a few years of use they would be so clouded that you wouldn't be able to see through them at all anyway. (exactly the same problem as the clear differential covers sold for chev's) I would also be concerned about underhood heat making the plastic/lexan prone to cracking/breaking after a few years.