There is a trade-off attached with either approach that you need to understand. If you feel not reflecting a price eats some of the leads then reflecting the same could create the same ripple effect. I believe logo designing cost, as a service, is something which should be customized per specific requirement. People may say that a logo is just a logo and what's there to customize? But, people like you and me knows that it isn't that plain vanilla product.

I would suggest that rather than trying to package your services per price point, you should try to communicate the values that one could expect working with you. It's all a game of making perceived value look bigger than cost. You do that and you won't lose any serious lead. Just make sure not to make false promises in you bid to increase the value.

Another option could be to highlight one or two packages, keeping the third one directly proportional to customization etc.

I hope above could be of some help!! Need any specific input? Feel free to reach out with more clarity.