Whatever happened to nut roast?

I'm a meat-eater myself, but I have no problem with those who are vegetarian. What I can never understand though is why those who market vegetarian food, package it so as to look like non-vegetarian stuff - you know, vegetarian sausages, vegetarian burgers and so on. Presumably they do this because this is what their customers want, which rather invites the question - why are they vegetarian? Why pretend to be eating a sausage unless what you really want deep down is a sausage. Are these people deceiving themselves? And the other day, believe it or not, I actually saw a packet of vegetarian fish fingers - fish fingers with no fish! Oh come on!!