[ageitgey]

> I don't know why some people want vegetarian food to taste like meat.

There are lots of reasons people want vegetarian versions of meat. Here are some of the most common:

1. Still want to eat meat, but want to reduce the environmental impact of meat production.

2. Don't want to eat meat for moral/preference reasons, but still enjoy the taste of eating it.

3. Want to eat meat, but don't like the dietary impact and want a healthier replacement.

[pnongrata]

As a complement to your list, I'd say it's more marketable AND makes the transition for some people more smooth.