Calab wrote:

I'd considered the HID replacements, they really are available for $50
and up with Bosch HID bulbs and off-brand ballasts, but for my Subaru's
9003 bulbs, they'd become low-beam only. Not really what I want, so I
stuck with halogen.

Check out ebay Bosch HID

$75 shipping... ya, right.

Harbor Freight has some HID kits now, item 96637, 96639, 96640. They do
indeed appear to be real HIDs with remote ballast modules and they claim
DOT certification.