How many audiophiles do you need to change a lightbulb?

It all depends on what cable the light bulb is connected to.

Get LEDs; never have to change them.

I'm not paying $$$ for something I can DIY.  So first I sourced Russian made lamp bases.    Then after extensive research I developed my own braided filaments using .9999999 copper and tungsten and a material I prefer not to disclose (I'm filing for a patent) in what I call a Hyper Light Braid.  The braid creates an optimal distribution of photons across the visible spectrum--though as an older male I do have some upper frequency roll off and dont see deep purple as well as young folks.  My wife and kids can though.  Color temperature is controlled by the ratio of copper to tungsten to my material X.  

Next is the critical issue of bulb type.  While the conventional white frosted bulbs are more pleasing they obviously both filter and distort the source.  So clear bulbs.  But not glass.  Currently I'm using crystal specifically Waterford globes. Swarovski is for rich poseurs.   I use argon glass to fill the globe at 2 atmospheres.  I use a regulated linear power supply of course, rewired with Cardas wire and Wattgate plugs.  

The resulting light stage is very broad and deep.  I can see the precise location of every component in my big rig.  Shadows are very carefully cast with little excess penumbra due to the single point source nature that the braid creates.  The light is very revealing of surface imperfections in the panel faces as well as dust on the turntable plinth.  But truth is more important than beauty.  

So far, it seems that no one, not one commenter, has mentioned the necessity of burning-in the bulb for a minimum of 250 hours before passing critical judgment on the fidelity or balance of the light produced. Likewise the cabling supplying the current...

Then there is the issue of bulb substitution. Incandescent vs. fluorescent vs led.