Dash 6, you just got no idea about B737's.
Who are you to tell people not to call it a classic when that is exactly what it is
The 737 models can be divided into three generations, including nine major variants :
The "Original" models consist of the 737-100, 737-200/-200 Advanced.
The "Classic" models consist of the 737-300, 737-400, and 737-500.
The "Next Generation" variants consist of the 737-600, 737-700/-700ER, 737-800, and 737-900/-900ER.
http://http://en.wikipedia.org/wiki/Boeing_737
Just do a google search for B737 classic yourself and see what you come up with.