Saw a couple while we were on the gulf coast of Alabama last week. Saw far more composite hulls, almost to the point of being exclusive. Is there a reason? Galvanic corrosion? Performance?
There are economy-grade aluminum boats, but generally it is much cheaper to build a series-production boat in fiberglass. Many fine yachts and fishing boats built from aluminum. The corrosion issues are well known, as are the various ways of dealing with that.