Last week I was chatting with my agent about acts that she wouldn’t represent. One of the things that help make her decision is how the person looks. Unfortunately it is a factor. It’s more that just what you look like as a human, but what does your “look” say.
If you have a wrinkled shirt and a haven’t shaved in a week, she’s not going to put you on her roster. It’s not to say you need to constantly be combing your hair and wear a tuxedo, but your look must look like something / someone a client wants to book.
Magicians love to give David Blaine and Criss Angel a hard time over how they dress. Both of those guys have a much more defined look than 90% of all magicians. You may not care for their style, but they have a style and it’s been thought out.
TLDR: Your look is more than just wearing a tie!