Yukon is a different company from Firefield
These are all gen1 scopes. Here’s the difference among gens 1, 2, amd 3.
Awesome site and thanks for sharing.
To sum it up, they have an image with a comparison:
Hey, great find. I posted that on deals.woot so it can be shared with the rest of the community.
^^ It looks to me like the item on Overstock is only 4x50, while the one here is 5x50. Maybe I’m reading it incorrectly or maybe one or the other website made a typo (does that ever happen?).
I do have to say that I find the difference between the Gen 1 available here and the Gen 3 to be alarming. It makes me wonder if my purchase here was so wise …
Apparently you’re right. The one on Overstock is model number FF24063 and the one woot is offering is model number FF18063.
That 4x versus 5x really makes a huge difference in prices around the net.
FireField FF18063 Nightfall Digital Night Vision 5x50 Monocular
Woot = $179.00 + $5 shipping
Lowest Price When Compared
Optics Planet = $229.99 + ships free
ebay = $299.99 + ships free
http://www.ebay.com/itm/Firefield-Nightfall-Digital-Night-Vision-5x50-Monocular-Kit-5X-LCD-FF18063-/251015812968
B&H = $249.99 + $9.70 (est) shipping
[urlhttp://www.bhphotovideo.com/c/product/766275-REG/Yukon_Advanced_Optics_FF18063_FF18063_Digital_Night_Vision.html
FireField SM18013 Sightmark Twilight 5x50 Digital Night Vision Monocular
Woot = $199.00 + $5 shipping
Lowest Price When Compared
Optics Planet =$329.99 + ships free
ebay = $329.99 ships free
http://www.ebay.com/itm/Sightmark-Twilight-Digital-Night-Vision-DNV-Monocular-5x50-SM18013-/230754078674
B&H = $329.99 + $9.70 (est) shipping
http://www.bhphotovideo.com/c/product/877015-REG/Sightmark_sm18013_5x50_Twilight_Digital_NV.html
Note
Above comparisons came from a random Google search and are only a small sample of results you may find on your own search. It is a good faith effort only, in an effort to give out average web pricing for comparison.
FireField YK24042B Spirit 4x50 Night Vision Monocular
Woot = $149.00 + $5 shipping
Optics Planet = $239.99 + ships free
ebay = $149.95 + ships free *Beats Woot by $4.05
http://www.ebay.com/itm/Yukon-24042B-Spirit-4x50-Monocular-Night-Vision-Scope-/360441751235?_trksid=p2047675.m1850&_trkparms=aid%3D222002%26algo%3DSIC.FIT%26ao%3D1%26asc%3D13534%26meid%3D3713004086277102766%26pid%3D100011%26prg%3D1080%26rk%3D1%26sd%3D400254106135%26
B&H = $239.99 + ships free
http://www.bhphotovideo.com/c/product/460129-REG/Yukon_Advanced_Optics_YK24042B_Spirit_4x50mm_Night_Vision.html
FireField FF18062 Nightfall Digital Night Vision 3.5x42 Monocular
Woot = $159.00 + $5 shipping. *** Best Price Found**
Optics Planet = $199.99 + ships free
ebay] = $201.99 + ships free
http://www.ebay.com/itm/Firefield-Digital-Nightfall-3-5x42-Night-Vision-Monocular-FF18062-/110935840218
B&H = $229.99 + $9.20 (est) shipping
http://www.bhphotovideo.com/c/product/766274-REG/Yukon_Advanced_Optics_FF18062_FF18062_Digital_Night_Vision.html
FireField FF18062 Nightfall Digital Night Vision 3.5x42 Monocular
Woot = $159.00 + $5
shipping. *** Best Price Found**
Optics Planet = $199.99 + ships free
ebay = $201.99 ships free
http://www.ebay.com/itm/Firefield-Digital-Nightfall-3-5x42-Night-Vision-Monocular-FF18062-/110935840218
B&H = $229.99 + $9.20 (est) shipping
http://www.bhphotovideo.com/c/product/766274-REG/Yukon_Advanced_Optics_FF18062_FF18062_Digital_Night_Vision.html
FireField YK24022WP Seawolf 3x42 Waterproof NV Monocular
Woot = $169.00 + $5 shipping.*Best Price Found
Optics Planet = $249.99 + ships free
ebay = $249.00 + ships free
http://www.ebay.com/itm/New-Sea-Wolf-3x42-Waterproof-Night-Vision-Monocular-/150953926298?pt=LH_DefaultDomain_0&hash=item23258e1e9a
B&H = $249.99 + $9.20 (est) shipping
http://www.bhphotovideo.com/c/product/425541-REG/Yukon_Advanced_Optics_YK24022WP_Sea_Wolf_NVMT_3x42mm.html
Note
Above comparisons came from a random Google search and are only a small sample of results you may find on your own search. It is a good faith effort only, in an effort to give out average web pricing for comparison.
ckeilah: Nice link, helped me keep my finger off the trigger… for now…
Glad to help. Maybe I lose a QP for that, though! 
Got mine the other day. Yes it is only generation 1 with its many limitations but for this kind of money Way Way Kool. Lighs up the woodline behind my house with no problems.