You get what you pay for people.
Believe me, many of those discount spots will simply toss your name into a load of templates they have and hope you pick one. Your logo should be your brand. It should speak of the image, words, and things that come to mind when people see your name. I wrote about this here:
http://www.digitaldjtips.com/2011/05/how-to-succeed-at-djing-marketing/
My logo looks simple, but I wanted it to be that way. I wanted a logo that would work on a deep house flyer, or a trance mix, or whatever. Think about your sound, and where you might be going in the future. Think about the image you want to portray (raver, clubber, hardcore, pretty, fashionable, sexy, funny, strange, etc.) and build an image from that.
Big companies will pay a million dollars easily for a branding and logo. Not telling you to pay the $500, but also don’t short-change yourself and end up with something you’ll be changing in 2-5 years.