Look, I am not trying to offend people and to clarify I USED TO OWN a Dean and Yamaha's. From a sound and quality perspective I am not impressed. For bass's haven't touched them and found someone like Billy using them had me wondering.You seem to think Yamaha is a cheap brand, yet you own a Dean.
Yamaha is a big company that makes all kinds of things at many different price points, from trumpets to motorcycles. They make inexpensive things and expensive things as well. The common denominator is that they are known for good quality.