It's that cheap because they have other pricier models. I got mine for cheap at Wal-Mart because they had a bunch of a new model on the shelf and were liquidating mine. A couple years later it's still humming along just fine.
Only thing I notice about that one is it's 2 speed instead of having the variable letting you choose 6 or 7. But then again, I only really use mine on either the lowest setting or maybe 3/4 max.