Not to be a stick in the mud but these units aren't worth .15c/gh. Going for less than $1/gh on ebay, and that's a markup.
It's not that bad...
I'd pay $0.25/GH shipped, easy.
I'm following some auctions right now.. it's that bad, but not all of them of course. The range is around .15c/gh->$1/gh depending on what's being included, with the higher end throwing in free jalapenos and stuff.
And to the OP, see, now you have a range of offers, from .25c/gh->.50c/gh.