This cheap?!

However, in my case, the I get the deals I do because I am not "shopping" for items in the normal way. I sometimes get items at what has to be far below cost to produce.

I have to watch myself as I will impulse buy just based on the 'wow how can they sell that thing at that price'. Latest example was a little more cost then I usually impulse at but I couldn't resist this very versitle 20 watt buck switching regulator with adjustable current limiting and voltag/current output display. The thing arrived this morning in the mail and it's all they said it is and I've been playing and turning pots and having a great time with it. Can anyone say they could built this thing for $12?

http://www.ebay.com/itm/170929163705?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649