Quite right, Train Controller is the Merc of the DCC software world I agree. However, it's not the only the fish in the sea and for those that don't require all of the features, there are other systems available of which Big Bear is one of them. There are exhibition layouts that find my system more than adequate for their needs, notably Mauch Chunk, featured in July Hornby Magazine in an article by Steve Hales. So yup Train Controller is the system to aspire to, but it's not the be all and end all, and with support, there is no reason why BB could not acquire the sophistication of TC, for one it has a developer responsive to the needs of its customers.