I'd argue Bachmann may actually drive people out of the market. Poor quality leads to frustration with the hobby, and while some people undoubtedly tinker and fix issues and stay involved and eventually upgrade, I wonder how many starter sets or cheap engines get put back in a box and slid under a bed, or simply tossed in the trash after a few years collecting dust?
Someone posted earlier about test running any unit they buy from Bachmann, and I agree wholeheartedly.
And their warrantee policy of replacing your unit you send in with any other available engine as making good is like taking your pet to the vet only to be given a totally different animal when you come to pick up your cat or dog.