You're surprised?
There will always be cheap games on any platform, and the 3DS is certainly no exception.
Although to be honest, it looks surprisingly good. When i read the 'Petz' name i though "Oh no, here we go again". But the graphics seem pretty competent, it'll presumably be in stereoscopic 3D, and it makes use of augmented reality. The developer seems to have actually made an effort, which goes against the definition of shovelware.
The only remaining problem is the less-than-appealing premise; but then it's not really aimed at us.