Headlight upgrade

[MikeCook]

I was given 1 of the BOSCH SBQ 200 H4 headlights. After installing the 1 light on my 1985 300SD, the improvement was incredible. I've been looking to purchase another but I've only been able to find the headlights in sets of 2. I have been able to find glass head lights for a fraction of the cost of the BOSCH SBQ 200. I was looking at these or these Is it worth spending 2 to 3 times more for quartz lights? What are the advantages? If going with glass, should I go with Autopal or the Neolite?

I figure I have 3 options.

Buy 2 of the glass headlights. Cost: $40
Buy 1 of the glass and use the Bosch light I already have. Though I do hate when headlights don't match. Cost: $20
Buy 1 set of Bosch lights. Cost: $100.