I own models of all six class one railroads, and others; with the Canadian Pacific Railway holding the top spot, re: the number of locomotives, I own:
GP9's, Train Master(Railking) C630, MP15DC, SD40, AC4400CW's, SD9043MAC and ES44AC(all 3-rail).
I recently ordered a new scale wheels 3.0 H24-66 Train Master; it should be arriving, at my dealers, sometime this week; and, if everything checks out okay... it will be shipped to me, soon.
I look forward to every new purchase; but, this new unit... it should be something special. I like seeing 6 sets of powered wheels on the rails, too.
http://www.trainweb.org/oldtim.../cpr_diesel/8900.htm
Rick