what are the pro's and con's of each? i know every little about the new stuff, as im a post war guy. im starting over and making a whole new layout. and im thinking about one or 2 new engines, im wanting to know if the new stuff able to run well at slow speeds? or are they just like the post war stuff that you got 2 speeds, fast and faster! is it worth it to get the ones with sound? and would i have to change my transformers to new ones to run sound? or for that matter the new engines at all? i dont want to be changing over transformers all the time. what do you all think of the trainmaster command set? worth the money? be nice to have a remote....lol and i think you can run up to 3 powered engines on a single train , pull way longer trains that way...lol or should i look at another brand all togeather? i will always be a pre and post war guy, but am thinking about adding a few new stuff, try to get the best of both worlds.