I have opened a new Hobby Store - I have N and HO scale Train Products, However, i was never a serious hobbyist in this area and there is much i do not know. This is my question. Life-Like, Kato, Atlas, Peco, Model Power, Bachmann, Rivarossi, Marklin and International Hobby all offer Train Sets. Is the track in any of these sets compatible with other makes of track? If not, are there conversion pieces available to go from one set to another. Right now in my store, i have Kato and Bachmann N Scale Track and Atlas HO Scale track. If i order Life-Like or International Hobby or Model Power train sets to sell for Christmas am i going to have to buy a brand of track for each of these manufacturers? I would appreciate any comments giving your knowledge and likes and dislikes in these areas.