How much would you pay (green light)

I can build this light and was thinking of building more of them. How much would they be worth to you I know some of these go for a pretty penny, The light is 12V.

[url]http://www.thegreenmonsterfishinglight.com/lights[/url]

Compared to mine pictured below.

I drop lights all summer, and have for years. I refuse to pay more than 50 bucks for one. If the cheaper ones burn out, I'll go get another one. Yours looks very nice, and if priced right, there is a market out there.