Yes, 100%

A startup can't generate revenue or even continue, without the spread of word of mouth, which is a BIG way to get new customers.

I've been there when you don't have a business card and it does 2 things:

    - You look really unprofessional

    - That's one person that will never remember you again.

I would advise vistaprint.com, they give 250 free business cards, you just have to pay shipping. Here's the link: vistaprint.com/thankspandora