It's a good topic, whether or not to post prices.
Of course, I thought about it, since I am in a position to do the same as you, and I guess it also depends upon what kind of clients you want to attract. Big discount designers usually are heavy in "one size fits all" type of approach. You would have to be to charge say, $600-$800 a site. Since time is all you have to make a profit, you would have to minimize the amount of time it takes you to do a site. If you can get two to three done in a day, hey, doing really well. And, if you have low prices, the idea is that you will have a high volume.
But reality being what it is, it inevitably takes longer to do a site than I usually bargain for. Clients don't like to give up the goods and you usually end up writing half their content anyway based on what you think it is that they do. Ever see a room go quiet? As a client, "What is it, exactly that you do? Describe your process." You may get a pretty good answer sometimes and you better take notes, because when they send you the "paper" version word doc for the about us page, they left out a lot of what they said. So, I usually end up writing stuff from meeting notes (extra time).
So then the question becomes how do I recoup that cost? Ah, charge them extra. Yes, good idea. But then you go to them and tell them how much over and above you have to do to extract what they should know in the first place and it doesn't go over so well. They point back to the website and say that that is what they are buying and that is what they are going to pay for. They say that you as a designer should know how much it is going to cost them.
If I'm selling widgets, it's easy, since that is a tangible product. However, I look at web design as both a service and as a product. The finished product is a result of the service you gave. And, you'll spend many an extra hour or two or three setting up emails for people, creating forwards, not to mention the hours on the phone talking about design strategy or content updates, etc.
That all being said, as a one man band, that's why I've decided to go priceless with my prices. I don't want bargain hunters, but companies who really want a site to work and the excellent support to go along with it. If you go the prices way, we'll have to stay in touch to compare notes.
Charmon