Is this laser pointer a ripoff?

I found a 150mw laser pointer for $17.69 (here's the link http://www.tmart.com/150mW-532nm-Midopen-Green-Laser-Pointer-Pen-2AAA_p119472.html) it seems too good too be true but being new to lasers im not 100%.If you now a reputable site with low prices please post a link