Me said:
Fenix L0D-CE ($44) and Lumapower M1 ($80), my first, and second most used lights respectively. Most of my other multitude of lights are cheaper (<$40) store-bought lights, such as MagLites and drop in modules, or Chinese lights (DX, Kaidomain etc.), many of which I bought solely in order to modify.
Well, my most expensive light has changed since I last posted in this thread, I'll post my top dollar LED, HID, and Incans:
Mag 4C - Incan - Osram 64611
AW 3-Mode incan driver - $75
4x AW C-Cell - $88
Host - $18
Litho LOP Reflector - $20
Borofloat Lens - $4
Several Bulbs - $20
Fivemega Stainless Steel Tailcap - $30
$255 total
Amondotech N30 - HID
Host, $150
DX Cree Q2-5A Dropin, $12
DX p60 clone, $8
$170
I dropped the Q2-5A dropin into the head of a random dx p60 clone, ditched the battery tube, and replaced the stock 5mm LEDs with a 3W neutral white LED, inside an aluminum head (to dissipate the head). I attached the replacement secondary light using heatshrink tubing.
Mag 2C - LED - 3x Cree MC-E
Host, $16
3x 6C Bin MC-E LEDs, $66
DX Triple Optic, $4
2x DX LiIon C cells, $14
Tri-star heatsink, $12
$112 total
Very rarely do I Actually buy new lights anymore. I generally just reconfirgure the same mag hosts I've had once I get bored with them. I'll use different bulbs, or different LEDs etc. I don't count all that in the prices above as I still have all the old 'guts' sitting in my junk drawer, waiting to be used for some future project. These are the prices of all the components in the lights as they exist now.