I tend to agree with Gerry and Andre for the reasons they mention.
However, without being unduly critical of the surviving manufacturers who have a challenging, and arguably dwindling, market, the glory years when Mike Wolfe was at the height of his entrepreneurial powers were mighty fine for us model railroad enthusiasts, providing the competition that inspired Lionel, K Line, Williams, MTH and others to produce great products.
Let's not forget that the glory years also include the late 1940s through the middle 1950s, and maybe some pre-war years (I know very little about pre-war trains). Arnold