Changing low beam bulb ... most frustrating maintenance job?

[Grumpy Goat]

So far I have only changed one bulb between the two bikes.

You replaced with the stock yellow-light bulb, right? Those base bulbs last the longest. I am trying to see what bulb will give me the whitest light and long life. At a reasonable price. (I am pretty sure such a beast does not exist and the answer is a change over to HID or LED for which the reflector is wrong).