^ It doesn't matter WHY there isn't a DVD version. It doesn't matter if it's because of budgeting or projected sales. All that matters is that a single consumer doesn't have to buy it if he/she doesn't like the product, if it doesn't fulfill his/her requirements to purchase.
Of course, you are legally obligated to buy something instead of downloading it illegally.
But I think that's an entirely different matter than showing support for the sake of showing support to a woman and company already far richer than probably all of us combined will ever be.