I can only say how I feel about it personally... I don't like it when there's only a form. Mainly because, on average, it seems like sites with forms reply back to you a lot less than ones with a specific email address. I have no idea why. Maybe because somebody built them the site professionally, then the owners don't care. I was ready to buy materials from a site the other day that claimed to be in business for 15 years, yet they had no email address anywhere, and I finally found a contact form buried deep in the site. The "contact" page provided neither. I left and did not buy.