On the other hand if I'm in the target market then I know quite a lot. Since I'm just another wage zombie, I actually have an advantage over some people. Fitting the model means knowing the model.
While that's certainly true, I'd hesitate against thinking you know a lot about the market even if you consider yourself part of it. Your market might be a lot more fragmented and diverse then you think -- it's still worth assuming that you'll have to learn everything about it.