Yea a lot of people dont realize that if you intend to do any paid work, have repeat business, or pick up new jobs from the ones youre working on, or even if youre trying to "break into the market", looking professional can seriously be enough to convince a potential client. Take for example a wedding. People will seriously come up to you and ask for your business card just based on how you look and how your gear looks doing the job. They havent seen and probably wont see the product you are currently producing, but just seeing someone that looks believable is sometimes enough to land you the next one. It sounds illogical, but its true.
Now, that being said, if youre playing around with your camera taking videos of your grandmother or your kids playing in the backyard, have at the DIY!