Domains I plan on dropping I price at $100
Mediocre domains with end-user potential around $200-1000
Brandables and good 2-3 word domains $1000-$5000
Single word and high quality EMD, premiums, etc. $5000-$50,000
Super Premiums, just make offer.
I also mix up the numbers like $489, $1199, $2388, etc.
Sometimes if I think the end user is a corporation I'll set price at $10,000, $15,000, etc.