Need inexpensive HID D1R replacement bulb(s) ASAP
 

Greetings,

The left low beam, a.k.a. HID D1R bulb died in my wife's 2004 Escalade. $$$$$$$$$$$$

What is the cheapest place for a replacement? Ebay? What should I expect to pay?

Do I or "should" I replace both at the same time, and if so for what reason?

Prices appear, for the bulb assembly alone, to be anywhere from (Ebay) $75 to upwards of over $250 on various parts sites, and Checker/Autozone etc.

Sometimes I like luxury, and sometimes I don't... :(

(FWIW: I searched the entire forum and didn't find anything.)

Thanks for ANY pointers for the best and least expensive solution !!